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treewide: Use array_size() in vzalloc()

Browse Source 
The vzalloc() function has no 2-factor argument form, so multiplication
factors need to be wrapped in array_size(). This patch replaces cases of:

        vzalloc(a * b)

with:
        vzalloc(array_size(a, b))

as well as handling cases of:

        vzalloc(a * b * c)

with:

        vzalloc(array3_size(a, b, c))

This does, however, attempt to ignore constant size factors like:

        vzalloc(4 * 1024)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  vzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  vzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  vzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
  vzalloc(
-	sizeof(TYPE) * (COUNT_ID)
+	array_size(COUNT_ID, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT_ID
+	array_size(COUNT_ID, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * (COUNT_CONST)
+	array_size(COUNT_CONST, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT_CONST
+	array_size(COUNT_CONST, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT_ID)
+	array_size(COUNT_ID, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT_ID
+	array_size(COUNT_ID, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT_CONST)
+	array_size(COUNT_CONST, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT_CONST
+	array_size(COUNT_CONST, sizeof(THING))
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

  vzalloc(
-	SIZE * COUNT
+	array_size(COUNT, SIZE)
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  vzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  vzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  vzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  vzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  vzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  vzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  vzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  vzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  vzalloc(C1 * C2 * C3, ...)
|
  vzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants.
@@
expression E1, E2;
constant C1, C2;
@@

(
  vzalloc(C1 * C2, ...)
|
  vzalloc(
-	E1 * E2
+	array_size(E1, E2)
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Kees Cook 2018-06-12 14:27:37 -07:00
parent 42bc47b353
commit fad953ce0b
64 changed files with 164 additions and 118 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/kvm/book3s_hv.c
View File

@ -3548,7 +3548,7 @@ static void kvmppc_core_free_memslot_hv(struct kvm_memory_slot *free,
static int kvmppc_core_create_memslot_hv(struct kvm_memory_slot *slot,
unsigned long npages)
{
slot->arch.rmap = vzalloc(npages * sizeof(*slot->arch.rmap));
slot->arch.rmap = vzalloc(array_size(npages, sizeof(*slot->arch.rmap)));
if (!slot->arch.rmap)
return -ENOMEM;

2
arch/powerpc/mm/mmu_context_iommu.c
View File

@ -159,7 +159,7 @@ long mm_iommu_get(struct mm_struct *mm, unsigned long ua, unsigned long entries,
goto unlock_exit;
}
mem->hpas = vzalloc(entries * sizeof(mem->hpas[0]));
mem->hpas = vzalloc(array_size(entries, sizeof(mem->hpas[0])));
if (!mem->hpas) {
kfree(mem);
ret = -ENOMEM;

3
arch/x86/kvm/cpuid.c
View File

@ -785,7 +785,8 @@ int kvm_dev_ioctl_get_cpuid(struct kvm_cpuid2 *cpuid,
return -EINVAL;
r = -ENOMEM;
cpuid_entries = vzalloc(sizeof(struct kvm_cpuid_entry2) * cpuid->nent);
cpuid_entries = vzalloc(array_size(sizeof(struct kvm_cpuid_entry2),
cpuid->nent));
if (!cpuid_entries)
goto out;

2
block/partitions/check.c
View File

@ -122,7 +122,7 @@ static struct parsed_partitions *allocate_partitions(struct gendisk *hd)
return NULL;
nr = disk_max_parts(hd);
state->parts = vzalloc(nr * sizeof(state->parts[0]));
state->parts = vzalloc(array_size(nr, sizeof(state->parts[0])));
if (!state->parts) {
kfree(state);
return NULL;

2
drivers/block/zram/zram_drv.c
View File

@ -898,7 +898,7 @@ static bool zram_meta_alloc(struct zram *zram, u64 disksize)
size_t num_pages;
num_pages = disksize >> PAGE_SHIFT;
zram->table = vzalloc(num_pages * sizeof(*zram->table));
zram->table = vzalloc(array_size(num_pages, sizeof(*zram->table)));
if (!zram->table)
return false;

3
drivers/char/raw.c
View File

@ -321,7 +321,8 @@ static int __init raw_init(void)
max_raw_minors = MAX_RAW_MINORS;
}
raw_devices = vzalloc(sizeof(struct raw_device_data) * max_raw_minors);
raw_devices = vzalloc(array_size(max_raw_minors,
sizeof(struct raw_device_data)));
if (!raw_devices) {
printk(KERN_ERR "Not enough memory for raw device structures\n");
ret = -ENOMEM;

2
drivers/cpufreq/intel_pstate.c
View File

@ -2339,7 +2339,7 @@ static int __init intel_pstate_init(void)
pr_info("Intel P-state driver initializing\n");
all_cpu_data = vzalloc(sizeof(void *) * num_possible_cpus());
all_cpu_data = vzalloc(array_size(sizeof(void *), num_possible_cpus()));
if (!all_cpu_data)
return -ENOMEM;

3
drivers/dma/mic_x100_dma.c
View File

@ -385,7 +385,8 @@ static int mic_dma_alloc_desc_ring(struct mic_dma_chan *ch)
if (dma_mapping_error(dev, ch->desc_ring_micpa))
goto map_error;
ch->tx_array = vzalloc(MIC_DMA_DESC_RX_SIZE * sizeof(*ch->tx_array));
ch->tx_array = vzalloc(array_size(MIC_DMA_DESC_RX_SIZE,
sizeof(*ch->tx_array)));
if (!ch->tx_array)
goto tx_error;
return 0;

3
drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
View File

@ -369,7 +369,8 @@ int amdgpu_gart_init(struct amdgpu_device *adev)
#ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS
/* Allocate pages table */
adev->gart.pages = vzalloc(sizeof(void *) * adev->gart.num_cpu_pages);
adev->gart.pages = vzalloc(array_size(sizeof(void *),
adev->gart.num_cpu_pages));
if (adev->gart.pages == NULL)
return -ENOMEM;
#endif

2
drivers/gpu/drm/drm_hashtab.c
View File

@ -47,7 +47,7 @@ int drm_ht_create(struct drm_open_hash *ht, unsigned int order)
if (size <= PAGE_SIZE / sizeof(*ht->table))
ht->table = kcalloc(size, sizeof(*ht->table), GFP_KERNEL);
else
ht->table = vzalloc(size*sizeof(*ht->table));
ht->table = vzalloc(array_size(size, sizeof(*ht->table)));
if (!ht->table) {
DRM_ERROR("Out of memory for hash table\n");
return -ENOMEM;

5
drivers/gpu/drm/i915/gvt/gtt.c
View File

@ -1585,8 +1585,9 @@ static struct intel_vgpu_mm *intel_vgpu_create_ggtt_mm(struct intel_vgpu *vgpu)
mm->type = INTEL_GVT_MM_GGTT;
nr_entries = gvt_ggtt_gm_sz(vgpu->gvt) >> I915_GTT_PAGE_SHIFT;
mm->ggtt_mm.virtual_ggtt = vzalloc(nr_entries *
vgpu->gvt->device_info.gtt_entry_size);
mm->ggtt_mm.virtual_ggtt =
vzalloc(array_size(nr_entries,
vgpu->gvt->device_info.gtt_entry_size));
if (!mm->ggtt_mm.virtual_ggtt) {
vgpu_free_mm(mm);
return ERR_PTR(-ENOMEM);

2
drivers/gpu/drm/i915/gvt/mmio.c
View File

@ -267,7 +267,7 @@ int intel_vgpu_init_mmio(struct intel_vgpu *vgpu)
{
const struct intel_gvt_device_info *info = &vgpu->gvt->device_info;
vgpu->mmio.vreg = vzalloc(info->mmio_size * 2);
vgpu->mmio.vreg = vzalloc(array_size(info->mmio_size, 2));
if (!vgpu->mmio.vreg)
return -ENOMEM;

3
drivers/gpu/drm/radeon/radeon_gart.c
View File

@ -347,7 +347,8 @@ int radeon_gart_init(struct radeon_device *rdev)
DRM_INFO("GART: num cpu pages %u, num gpu pages %u\n",
rdev->gart.num_cpu_pages, rdev->gart.num_gpu_pages);
/* Allocate pages table */
rdev->gart.pages = vzalloc(sizeof(void *) * rdev->gart.num_cpu_pages);
rdev->gart.pages = vzalloc(array_size(sizeof(void *),
rdev->gart.num_cpu_pages));
if (rdev->gart.pages == NULL) {
radeon_gart_fini(rdev);
return -ENOMEM;

18
drivers/gpu/drm/selftests/test-drm_mm.c
View File

@ -389,7 +389,7 @@ static int __igt_reserve(unsigned int count, u64 size)
if (!order)
goto err;
nodes = vzalloc(sizeof(*nodes) * count);
nodes = vzalloc(array_size(count, sizeof(*nodes)));
if (!nodes)
goto err_order;
@ -889,7 +889,7 @@ static int __igt_insert_range(unsigned int count, u64 size, u64 start, u64 end)
*/
ret = -ENOMEM;
nodes = vzalloc(count * sizeof(*nodes));
nodes = vzalloc(array_size(count, sizeof(*nodes)));
if (!nodes)
goto err;
@ -1046,7 +1046,7 @@ static int igt_align(void *ignored)
* meets our requirements.
*/
nodes = vzalloc(max_count * sizeof(*nodes));
nodes = vzalloc(array_size(max_count, sizeof(*nodes)));
if (!nodes)
goto err;
@ -1416,7 +1416,7 @@ static int igt_evict(void *ignored)
*/
ret = -ENOMEM;
nodes = vzalloc(size * sizeof(*nodes));
nodes = vzalloc(array_size(size, sizeof(*nodes)));
if (!nodes)
goto err;
@ -1526,7 +1526,7 @@ static int igt_evict_range(void *ignored)
*/
ret = -ENOMEM;
nodes = vzalloc(size * sizeof(*nodes));
nodes = vzalloc(array_size(size, sizeof(*nodes)));
if (!nodes)
goto err;
@ -1627,7 +1627,7 @@ static int igt_topdown(void *ignored)
*/
ret = -ENOMEM;
nodes = vzalloc(count * sizeof(*nodes));
nodes = vzalloc(array_size(count, sizeof(*nodes)));
if (!nodes)
goto err;
@ -1741,7 +1741,7 @@ static int igt_bottomup(void *ignored)
*/
ret = -ENOMEM;
nodes = vzalloc(count * sizeof(*nodes));
nodes = vzalloc(array_size(count, sizeof(*nodes)));
if (!nodes)
goto err;
@ -2098,7 +2098,7 @@ static int igt_color_evict(void *ignored)
*/
ret = -ENOMEM;
nodes = vzalloc(total_size * sizeof(*nodes));
nodes = vzalloc(array_size(total_size, sizeof(*nodes)));
if (!nodes)
goto err;
@ -2199,7 +2199,7 @@ static int igt_color_evict_range(void *ignored)
*/
ret = -ENOMEM;
nodes = vzalloc(total_size * sizeof(*nodes));
nodes = vzalloc(array_size(total_size, sizeof(*nodes)));
if (!nodes)
goto err;

2
drivers/gpu/drm/via/via_dmablit.c
View File

@ -235,7 +235,7 @@ via_lock_all_dma_pages(drm_via_sg_info_t *vsg, drm_via_dmablit_t *xfer)
vsg->num_pages = VIA_PFN(xfer->mem_addr + (xfer->num_lines * xfer->mem_stride - 1)) -
first_pfn + 1;
vsg->pages = vzalloc(sizeof(struct page *) * vsg->num_pages);
vsg->pages = vzalloc(array_size(sizeof(struct page *), vsg->num_pages));
if (NULL == vsg->pages)
return -ENOMEM;
ret = get_user_pages_fast((unsigned long)xfer->mem_addr,

16
drivers/infiniband/core/umem_odp.c
View File

@ -285,13 +285,15 @@ struct ib_umem *ib_alloc_odp_umem(struct ib_ucontext *context,
mutex_init(&odp_data->umem_mutex);
init_completion(&odp_data->notifier_completion);
odp_data->page_list = vzalloc(pages * sizeof(*odp_data->page_list));
odp_data->page_list =
vzalloc(array_size(pages, sizeof(*odp_data->page_list)));
if (!odp_data->page_list) {
ret = -ENOMEM;
goto out_odp_data;
}
odp_data->dma_list = vzalloc(pages * sizeof(*odp_data->dma_list));
odp_data->dma_list =
vzalloc(array_size(pages, sizeof(*odp_data->dma_list)));
if (!odp_data->dma_list) {
ret = -ENOMEM;
goto out_page_list;
@ -371,15 +373,17 @@ int ib_umem_odp_get(struct ib_ucontext *context, struct ib_umem *umem,
init_completion(&umem->odp_data->notifier_completion);
if (ib_umem_num_pages(umem)) {
umem->odp_data->page_list = vzalloc(ib_umem_num_pages(umem) *
sizeof(*umem->odp_data->page_list));
umem->odp_data->page_list =
vzalloc(array_size(sizeof(*umem->odp_data->page_list),
ib_umem_num_pages(umem)));
if (!umem->odp_data->page_list) {
ret_val = -ENOMEM;
goto out_odp_data;
}
umem->odp_data->dma_list = vzalloc(ib_umem_num_pages(umem) *
sizeof(*umem->odp_data->dma_list));
umem->odp_data->dma_list =
vzalloc(array_size(sizeof(*umem->odp_data->dma_list),
ib_umem_num_pages(umem)));
if (!umem->odp_data->dma_list) {
ret_val = -ENOMEM;
goto out_page_list;

2
drivers/infiniband/hw/hns/hns_roce_mr.c
View File

@ -144,7 +144,7 @@ static int hns_roce_buddy_init(struct hns_roce_buddy *buddy, int max_order)
buddy->bits[i] = kcalloc(s, sizeof(long), GFP_KERNEL |
__GFP_NOWARN);
if (!buddy->bits[i]) {
buddy->bits[i] = vzalloc(s * sizeof(long));
buddy->bits[i] = vzalloc(array_size(s, sizeof(long)));
if (!buddy->bits[i])
goto err_out_free;
}

6
drivers/infiniband/hw/qib/qib_init.c
View File

@ -369,11 +369,13 @@ static void init_shadow_tids(struct qib_devdata *dd)
struct page **pages;
dma_addr_t *addrs;
pages = vzalloc(dd->cfgctxts * dd->rcvtidcnt * sizeof(struct page *));
pages = vzalloc(array_size(sizeof(struct page *),
dd->cfgctxts * dd->rcvtidcnt));
if (!pages)
goto bail;
addrs = vzalloc(dd->cfgctxts * dd->rcvtidcnt * sizeof(dma_addr_t));
addrs = vzalloc(array_size(sizeof(dma_addr_t),
dd->cfgctxts * dd->rcvtidcnt));
if (!addrs)
goto bail_free;

8
drivers/infiniband/ulp/ipoib/ipoib_cm.c
View File

@ -358,7 +358,8 @@ static int ipoib_cm_nonsrq_init_rx(struct net_device *dev, struct ib_cm_id *cm_i
int ret;
int i;
rx->rx_ring = vzalloc(ipoib_recvq_size * sizeof *rx->rx_ring);
rx->rx_ring = vzalloc(array_size(ipoib_recvq_size,
sizeof(*rx->rx_ring)));
if (!rx->rx_ring)
return -ENOMEM;
@ -1145,7 +1146,7 @@ static int ipoib_cm_tx_init(struct ipoib_cm_tx *p, u32 qpn,
int ret;
noio_flag = memalloc_noio_save();
p->tx_ring = vzalloc(ipoib_sendq_size * sizeof(*p->tx_ring));
p->tx_ring = vzalloc(array_size(ipoib_sendq_size, sizeof(*p->tx_ring)));
if (!p->tx_ring) {
memalloc_noio_restore(noio_flag);
ret = -ENOMEM;
@ -1570,7 +1571,8 @@ static void ipoib_cm_create_srq(struct net_device *dev, int max_sge)
return;
}
priv->cm.srq_ring = vzalloc(ipoib_recvq_size * sizeof *priv->cm.srq_ring);
priv->cm.srq_ring = vzalloc(array_size(ipoib_recvq_size,
sizeof(*priv->cm.srq_ring)));
if (!priv->cm.srq_ring) {
ib_destroy_srq(priv->cm.srq);
priv->cm.srq = NULL;

3
drivers/infiniband/ulp/ipoib/ipoib_main.c
View File

@ -1710,7 +1710,8 @@ static int ipoib_dev_init_default(struct net_device *dev)
if (!priv->rx_ring)
goto out;
priv->tx_ring = vzalloc(ipoib_sendq_size * sizeof *priv->tx_ring);
priv->tx_ring = vzalloc(array_size(ipoib_sendq_size,
sizeof(*priv->tx_ring)));
if (!priv->tx_ring) {
pr_warn("%s: failed to allocate TX ring (%d entries)\n",
priv->ca->name, ipoib_sendq_size);

2
drivers/lightnvm/pblk-init.c
View File

@ -187,7 +187,7 @@ static int pblk_rwb_init(struct pblk *pblk)
nr_entries = pblk_rb_calculate_size(buffer_size);
entries = vzalloc(nr_entries * sizeof(struct pblk_rb_entry));
entries = vzalloc(array_size(nr_entries, sizeof(struct pblk_rb_entry)));
if (!entries)
return -ENOMEM;

2
drivers/lightnvm/pblk-recovery.c
View File

@ -260,7 +260,7 @@ static int pblk_recov_pad_oob(struct pblk *pblk, struct pblk_line *line,
if (!pad_rq)
return -ENOMEM;
data = vzalloc(pblk->max_write_pgs * geo->csecs);
data = vzalloc(array_size(pblk->max_write_pgs, geo->csecs));
if (!data) {
ret = -ENOMEM;
goto free_rq;

4
drivers/md/bcache/super.c
View File

@ -2041,8 +2041,8 @@ static int cache_alloc(struct cache *ca)
!init_fifo(&ca->free[RESERVE_NONE], free, GFP_KERNEL) ||
!init_fifo(&ca->free_inc, free << 2, GFP_KERNEL) ||
!init_heap(&ca->heap, free << 3, GFP_KERNEL) ||
!(ca->buckets = vzalloc(sizeof(struct bucket) *
ca->sb.nbuckets)) ||
!(ca->buckets = vzalloc(array_size(sizeof(struct bucket),
ca->sb.nbuckets))) ||
!(ca->prio_buckets = kzalloc(array3_size(sizeof(uint64_t),
prio_buckets(ca), 2),
GFP_KERNEL)) ||

2
drivers/md/dm-cache-policy-smq.c
View File

@ -69,7 +69,7 @@ static int space_init(struct entry_space *es, unsigned nr_entries)
return 0;
}
es->begin = vzalloc(sizeof(struct entry) * nr_entries);
es->begin = vzalloc(array_size(nr_entries, sizeof(struct entry)));
if (!es->begin)
return -ENOMEM;

15
drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
View File

@ -119,12 +119,14 @@ int tpg_alloc(struct tpg_data *tpg, unsigned max_w)
for (plane = 0; plane < TPG_MAX_PLANES; plane++) {
unsigned pixelsz = plane ? 2 : 4;
tpg->lines[pat][plane] = vzalloc(max_w * 2 * pixelsz);
tpg->lines[pat][plane] =
vzalloc(array3_size(max_w, 2, pixelsz));
if (!tpg->lines[pat][plane])
return -ENOMEM;
if (plane == 0)
continue;
tpg->downsampled_lines[pat][plane] = vzalloc(max_w * 2 * pixelsz);
tpg->downsampled_lines[pat][plane] =
vzalloc(array3_size(max_w, 2, pixelsz));
if (!tpg->downsampled_lines[pat][plane])
return -ENOMEM;
}
@ -132,13 +134,16 @@ int tpg_alloc(struct tpg_data *tpg, unsigned max_w)
for (plane = 0; plane < TPG_MAX_PLANES; plane++) {
unsigned pixelsz = plane ? 2 : 4;
tpg->contrast_line[plane] = vzalloc(max_w * pixelsz);
tpg->contrast_line[plane] =
vzalloc(array_size(pixelsz, max_w));
if (!tpg->contrast_line[plane])
return -ENOMEM;
tpg->black_line[plane] = vzalloc(max_w * pixelsz);
tpg->black_line[plane] =
vzalloc(array_size(pixelsz, max_w));
if (!tpg->black_line[plane])
return -ENOMEM;
tpg->random_line[plane] = vzalloc(max_w * 2 * pixelsz);
tpg->random_line[plane] =
vzalloc(array3_size(max_w, 2, pixelsz));
if (!tpg->random_line[plane])
return -ENOMEM;
}

2
drivers/media/pci/cx23885/cx23885-alsa.c
View File

@ -95,7 +95,7 @@ static int cx23885_alsa_dma_init(struct cx23885_audio_dev *chip, int nr_pages)
memset(buf->vaddr, 0, nr_pages << PAGE_SHIFT);
buf->nr_pages = nr_pages;
buf->sglist = vzalloc(buf->nr_pages * sizeof(*buf->sglist));
buf->sglist = vzalloc(array_size(sizeof(*buf->sglist), buf->nr_pages));
if (NULL == buf->sglist)
goto vzalloc_err;

2
drivers/media/pci/cx25821/cx25821-alsa.c
View File

@ -159,7 +159,7 @@ static int cx25821_alsa_dma_init(struct cx25821_audio_dev *chip, int nr_pages)
memset(buf->vaddr, 0, nr_pages << PAGE_SHIFT);
buf->nr_pages = nr_pages;
buf->sglist = vzalloc(buf->nr_pages * sizeof(*buf->sglist));
buf->sglist = vzalloc(array_size(sizeof(*buf->sglist), buf->nr_pages));
if (NULL == buf->sglist)
goto vzalloc_err;

2
drivers/media/pci/cx88/cx88-alsa.c
View File

@ -298,7 +298,7 @@ static int cx88_alsa_dma_init(struct cx88_audio_dev *chip, int nr_pages)
memset(buf->vaddr, 0, nr_pages << PAGE_SHIFT);
buf->nr_pages = nr_pages;
buf->sglist = vzalloc(buf->nr_pages * sizeof(*buf->sglist));
buf->sglist = vzalloc(array_size(sizeof(*buf->sglist), buf->nr_pages));
if (!buf->sglist)
goto vzalloc_err;

2
drivers/media/pci/saa7134/saa7134-alsa.c
View File

@ -279,7 +279,7 @@ static int saa7134_alsa_dma_init(struct saa7134_dev *dev, int nr_pages)
memset(dma->vaddr, 0, nr_pages << PAGE_SHIFT);
dma->nr_pages = nr_pages;
dma->sglist = vzalloc(dma->nr_pages * sizeof(*dma->sglist));
dma->sglist = vzalloc(array_size(sizeof(*dma->sglist), dma->nr_pages));
if (NULL == dma->sglist)
goto vzalloc_err;

4
drivers/media/platform/vivid/vivid-core.c
View File

@ -844,10 +844,10 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
tpg_init(&dev->tpg, 640, 360);
if (tpg_alloc(&dev->tpg, MAX_ZOOM * MAX_WIDTH))
goto free_dev;
dev->scaled_line = vzalloc(MAX_ZOOM * MAX_WIDTH);
dev->scaled_line = vzalloc(array_size(MAX_WIDTH, MAX_ZOOM));
if (!dev->scaled_line)
goto free_dev;
dev->blended_line = vzalloc(MAX_ZOOM * MAX_WIDTH);
dev->blended_line = vzalloc(array_size(MAX_WIDTH, MAX_ZOOM));
if (!dev->blended_line)
goto free_dev;

2
drivers/media/v4l2-core/videobuf-dma-sg.c
View File

@ -69,7 +69,7 @@ static struct scatterlist *videobuf_vmalloc_to_sg(unsigned char *virt,
struct page *pg;
int i;
sglist = vzalloc(nr_pages * sizeof(*sglist));
sglist = vzalloc(array_size(nr_pages, sizeof(*sglist)));
if (NULL == sglist)
return NULL;
sg_init_table(sglist, nr_pages);

5
drivers/mtd/nand/raw/nandsim.c
View File

@ -565,8 +565,9 @@ static int __init alloc_device(struct nandsim *ns)
err = -EINVAL;
goto err_close;
}
ns->pages_written = vzalloc(BITS_TO_LONGS(ns->geom.pgnum) *
sizeof(unsigned long));
ns->pages_written =
vzalloc(array_size(sizeof(unsigned long),
BITS_TO_LONGS(ns->geom.pgnum)));
if (!ns->pages_written) {
NS_ERR("alloc_device: unable to allocate pages written array\n");
err = -ENOMEM;

7
drivers/net/ethernet/broadcom/bnx2.c
View File

@ -778,7 +778,7 @@ bnx2_alloc_rx_mem(struct bnx2 *bp)
int j;
rxr->rx_buf_ring =
vzalloc(SW_RXBD_RING_SIZE * bp->rx_max_ring);
vzalloc(array_size(SW_RXBD_RING_SIZE, bp->rx_max_ring));
if (!rxr->rx_buf_ring)
return -ENOMEM;
@ -794,8 +794,9 @@ bnx2_alloc_rx_mem(struct bnx2 *bp)
}
if (bp->rx_pg_ring_size) {
rxr->rx_pg_ring = vzalloc(SW_RXPG_RING_SIZE *
bp->rx_max_pg_ring);
rxr->rx_pg_ring =
vzalloc(array_size(SW_RXPG_RING_SIZE,
bp->rx_max_pg_ring));
if (!rxr->rx_pg_ring)
return -ENOMEM;

4
drivers/net/ethernet/cavium/liquidio/octeon_droq.c
View File

@ -286,8 +286,8 @@ int octeon_init_droq(struct octeon_device *oct,
numa_node);
if (!droq->recv_buf_list)
droq->recv_buf_list = (struct octeon_recv_buffer *)
vzalloc(droq->max_count *
OCT_DROQ_RECVBUF_SIZE);
vzalloc(array_size(droq->max_count,
OCT_DROQ_RECVBUF_SIZE));
if (!droq->recv_buf_list) {
dev_err(&oct->pci_dev->dev, "Output queue recv buf list alloc failed\n");
goto init_droq_fail;

4
drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
View File

@ -1406,8 +1406,8 @@ static int hns_dsaf_init(struct dsaf_device *dsaf_dev)
return ret;
/* malloc mem for tcam mac key(vlan+mac) */
priv->soft_mac_tbl = vzalloc(sizeof(*priv->soft_mac_tbl)
* DSAF_TCAM_SUM);
priv->soft_mac_tbl = vzalloc(array_size(DSAF_TCAM_SUM,
sizeof(*priv->soft_mac_tbl)));
if (!priv->soft_mac_tbl) {
ret = -ENOMEM;
goto remove_hw;

5
drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.c
View File

@ -753,11 +753,12 @@ static int init_cmdq(struct hinic_cmdq *cmdq, struct hinic_wq *wq,
spin_lock_init(&cmdq->cmdq_lock);
cmdq->done = vzalloc(wq->q_depth * sizeof(*cmdq->done));
cmdq->done = vzalloc(array_size(sizeof(*cmdq->done), wq->q_depth));
if (!cmdq->done)
return -ENOMEM;
cmdq->errcode = vzalloc(wq->q_depth * sizeof(*cmdq->errcode));
cmdq->errcode = vzalloc(array_size(sizeof(*cmdq->errcode),
wq->q_depth));
if (!cmdq->errcode) {
err = -ENOMEM;
goto err_errcode;

13
drivers/net/ethernet/neterion/vxge/vxge-config.c
View File

@ -2565,7 +2565,7 @@ __vxge_hw_mempool_grow(struct vxge_hw_mempool *mempool, u32 num_allocate,
* allocate new memblock and its private part at once.
* This helps to minimize memory usage a lot. */
mempool->memblocks_priv_arr[i] =
vzalloc(mempool->items_priv_size * n_items);
vzalloc(array_size(mempool->items_priv_size, n_items));
if (mempool->memblocks_priv_arr[i] == NULL) {
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
@ -2665,7 +2665,7 @@ __vxge_hw_mempool_create(struct __vxge_hw_device *devh,
/* allocate array of memblocks */
mempool->memblocks_arr =
vzalloc(sizeof(void *) * mempool->memblocks_max);
vzalloc(array_size(sizeof(void *), mempool->memblocks_max));
if (mempool->memblocks_arr == NULL) {
__vxge_hw_mempool_destroy(mempool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
@ -2675,7 +2675,7 @@ __vxge_hw_mempool_create(struct __vxge_hw_device *devh,
/* allocate array of private parts of items per memblocks */
mempool->memblocks_priv_arr =
vzalloc(sizeof(void *) * mempool->memblocks_max);
vzalloc(array_size(sizeof(void *), mempool->memblocks_max));
if (mempool->memblocks_priv_arr == NULL) {
__vxge_hw_mempool_destroy(mempool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
@ -2685,8 +2685,8 @@ __vxge_hw_mempool_create(struct __vxge_hw_device *devh,
/* allocate array of memblocks DMA objects */
mempool->memblocks_dma_arr =
vzalloc(sizeof(struct vxge_hw_mempool_dma) *
mempool->memblocks_max);
vzalloc(array_size(sizeof(struct vxge_hw_mempool_dma),
mempool->memblocks_max));
if (mempool->memblocks_dma_arr == NULL) {
__vxge_hw_mempool_destroy(mempool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
@ -2695,7 +2695,8 @@ __vxge_hw_mempool_create(struct __vxge_hw_device *devh,
}
/* allocate hash array of items */
mempool->items_arr = vzalloc(sizeof(void *) * mempool->items_max);
mempool->items_arr = vzalloc(array_size(sizeof(void *),
mempool->items_max));
if (mempool->items_arr == NULL) {
__vxge_hw_mempool_destroy(mempool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;

2
drivers/net/ethernet/qlogic/qed/qed_l2.c
View File

@ -2435,7 +2435,7 @@ static int qed_update_vport(struct qed_dev *cdev,
if (!cdev)
return -ENODEV;
rss = vzalloc(sizeof(*rss) * cdev->num_hwfns);
rss = vzalloc(array_size(sizeof(*rss), cdev->num_hwfns));
if (!rss)
return -ENOMEM;

5
drivers/net/ethernet/qlogic/qede/qede_filter.c
View File

@ -342,8 +342,9 @@ int qede_alloc_arfs(struct qede_dev *edev)
for (i = 0; i <= QEDE_RFS_FLW_MASK; i++)
INIT_HLIST_HEAD(QEDE_ARFS_BUCKET_HEAD(edev, i));
edev->arfs->arfs_fltr_bmap = vzalloc(BITS_TO_LONGS(QEDE_RFS_MAX_FLTR) *
sizeof(long));
edev->arfs->arfs_fltr_bmap =
vzalloc(array_size(sizeof(long),
BITS_TO_LONGS(QEDE_RFS_MAX_FLTR)));
if (!edev->arfs->arfs_fltr_bmap) {
vfree(edev->arfs);
edev->arfs = NULL;

5
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
View File

@ -386,8 +386,9 @@ int qlcnic_83xx_setup_intr(struct qlcnic_adapter *adapter)
}
/* setup interrupt mapping table for fw */
ahw->intr_tbl = vzalloc(num_msix *
sizeof(struct qlcnic_intrpt_config));
ahw->intr_tbl =
vzalloc(array_size(num_msix,
sizeof(struct qlcnic_intrpt_config)));
if (!ahw->intr_tbl)
return -ENOMEM;

5
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
View File

@ -916,8 +916,9 @@ int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
if (qlcnic_check_multi_tx(adapter) &&
!ahw->diag_test &&
(adapter->flags & QLCNIC_MSIX_ENABLED)) {
ahw->intr_tbl = vzalloc(ahw->num_msix *
sizeof(struct qlcnic_intrpt_config));
ahw->intr_tbl =
vzalloc(array_size(sizeof(struct qlcnic_intrpt_config),
ahw->num_msix));
if (!ahw->intr_tbl)
return -ENOMEM;

3
drivers/net/ethernet/sfc/ef10.c
View File

@ -4984,7 +4984,8 @@ static int efx_ef10_filter_table_probe(struct efx_nic *efx)
net_dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_FILTER;
}
table->entry = vzalloc(HUNT_FILTER_TBL_ROWS * sizeof(*table->entry));
table->entry = vzalloc(array_size(HUNT_FILTER_TBL_ROWS,
sizeof(*table->entry)));
if (!table->entry) {
rc = -ENOMEM;
goto fail;

3
drivers/net/ethernet/sfc/falcon/farch.c
View File

@ -2755,7 +2755,8 @@ int ef4_farch_filter_table_probe(struct ef4_nic *efx)
GFP_KERNEL);
if (!table->used_bitmap)
goto fail;
table->spec = vzalloc(table->size * sizeof(*table->spec));
table->spec = vzalloc(array_size(sizeof(*table->spec),
table->size));
if (!table->spec)
goto fail;
}

3
drivers/net/ethernet/sfc/farch.c
View File

@ -2826,7 +2826,8 @@ int efx_farch_filter_table_probe(struct efx_nic *efx)
GFP_KERNEL);
if (!table->used_bitmap)
goto fail;
table->spec = vzalloc(table->size * sizeof(*table->spec));
table->spec = vzalloc(array_size(sizeof(*table->spec),
table->size));
if (!table->spec)
goto fail;
}

2
drivers/net/ppp/pptp.c
View File

@ -648,7 +648,7 @@ static int __init pptp_init_module(void)
int err = 0;
pr_info("PPTP driver version " PPTP_DRIVER_VERSION "\n");
callid_sock = vzalloc((MAX_CALLID + 1) * sizeof(void *));
callid_sock = vzalloc(array_size(sizeof(void *), (MAX_CALLID + 1)));
if (!callid_sock)
return -ENOMEM;

4
drivers/net/xen-netback/xenbus.c
View File

@ -977,8 +977,8 @@ static void connect(struct backend_info *be)
}
/* Use the number of queues requested by the frontend */
be->vif->queues = vzalloc(requested_num_queues *
sizeof(struct xenvif_queue));
be->vif->queues = vzalloc(array_size(requested_num_queues,
sizeof(struct xenvif_queue)));
if (!be->vif->queues) {
xenbus_dev_fatal(dev, -ENOMEM,
"allocating queues");

2
drivers/s390/char/sclp_sd.c
View File

@ -300,7 +300,7 @@ static int sclp_sd_store_data(struct sclp_sd_data *result, u8 di)
goto out_result;
/* Allocate memory */
data = vzalloc((size_t) dsize * PAGE_SIZE);
data = vzalloc(array_size((size_t)dsize, PAGE_SIZE));
if (!data) {
rc = -ENOMEM;
goto out;

10
drivers/scsi/megaraid/megaraid_sas_fusion.c
View File

@ -4829,8 +4829,9 @@ megasas_alloc_fusion_context(struct megasas_instance *instance)
(PLD_SPAN_INFO)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
fusion->log_to_span_pages);
if (!fusion->log_to_span) {
fusion->log_to_span = vzalloc(MAX_LOGICAL_DRIVES_EXT *
sizeof(LD_SPAN_INFO));
fusion->log_to_span =
vzalloc(array_size(MAX_LOGICAL_DRIVES_EXT,
sizeof(LD_SPAN_INFO)));
if (!fusion->log_to_span) {
dev_err(&instance->pdev->dev, "Failed from %s %d\n",
__func__, __LINE__);
@ -4844,8 +4845,9 @@ megasas_alloc_fusion_context(struct megasas_instance *instance)
(struct LD_LOAD_BALANCE_INFO *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
fusion->load_balance_info_pages);
if (!fusion->load_balance_info) {
fusion->load_balance_info = vzalloc(MAX_LOGICAL_DRIVES_EXT *
sizeof(struct LD_LOAD_BALANCE_INFO));
fusion->load_balance_info =
vzalloc(array_size(MAX_LOGICAL_DRIVES_EXT,
sizeof(struct LD_LOAD_BALANCE_INFO)));
if (!fusion->load_balance_info)
dev_err(&instance->pdev->dev, "Failed to allocate load_balance_info, "
"continuing without Load Balance support\n");

4
drivers/scsi/qla2xxx/tcm_qla2xxx.c
View File

@ -1661,7 +1661,9 @@ static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
return rc;
}
lport->lport_loopid_map = vzalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
lport->lport_loopid_map =
vzalloc(array_size(65536,
sizeof(struct tcm_qla2xxx_fc_loopid)));
if (!lport->lport_loopid_map) {
pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);

3
drivers/soc/fsl/qbman/qman.c
View File

@ -1021,7 +1021,8 @@ int qman_alloc_fq_table(u32 _num_fqids)
{
num_fqids = _num_fqids;
fq_table = vzalloc(num_fqids * 2 * sizeof(struct qman_fq *));
fq_table = vzalloc(array3_size(sizeof(struct qman_fq *),
num_fqids, 2));
if (!fq_table)
return -ENOMEM;

2
drivers/staging/rtl8188eu/core/rtw_mlme.c
View File

@ -53,7 +53,7 @@ int rtw_init_mlme_priv(struct adapter *padapter)
memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
pbuf = vzalloc(MAX_BSS_CNT * (sizeof(struct wlan_network)));
pbuf = vzalloc(array_size(MAX_BSS_CNT, sizeof(struct wlan_network)));
if (!pbuf) {
res = _FAIL;

2
drivers/staging/rtl8723bs/core/rtw_mlme.c
View File

@ -37,7 +37,7 @@ sint _rtw_init_mlme_priv(struct adapter *padapter)
memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
pbuf = vzalloc(MAX_BSS_CNT * (sizeof(struct wlan_network)));
pbuf = vzalloc(array_size(MAX_BSS_CNT, sizeof(struct wlan_network)));
if (pbuf == NULL) {
res = _FAIL;

4
drivers/staging/rts5208/rtsx_chip.c
View File

@ -1660,13 +1660,13 @@ int rtsx_write_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf,
dev_dbg(rtsx_dev(chip), "dw_len = %d\n", dw_len);
data = vzalloc(dw_len * 4);
data = vzalloc(array_size(dw_len, 4));
if (!data) {
rtsx_trace(chip);
return STATUS_NOMEM;
}
mask = vzalloc(dw_len * 4);
mask = vzalloc(array_size(dw_len, 4));
if (!mask) {
vfree(data);
rtsx_trace(chip);

2
drivers/target/target_core_transport.c
View File

@ -253,7 +253,7 @@ int transport_alloc_session_tags(struct se_session *se_sess,
se_sess->sess_cmd_map = kcalloc(tag_size, tag_num,
GFP_KERNEL | __GFP_NOWARN | __GFP_RETRY_MAYFAIL);
if (!se_sess->sess_cmd_map) {
se_sess->sess_cmd_map = vzalloc(tag_num * tag_size);
se_sess->sess_cmd_map = vzalloc(array_size(tag_size, tag_num));
if (!se_sess->sess_cmd_map) {
pr_err("Unable to allocate se_sess->sess_cmd_map\n");
return -ENOMEM;

3
fs/nfsd/nfscache.c
View File

@ -177,7 +177,8 @@ int nfsd_reply_cache_init(void)
drc_hashtbl = kcalloc(hashsize, sizeof(*drc_hashtbl), GFP_KERNEL);
if (!drc_hashtbl) {
drc_hashtbl = vzalloc(hashsize * sizeof(*drc_hashtbl));
drc_hashtbl = vzalloc(array_size(hashsize,
sizeof(*drc_hashtbl)));
if (!drc_hashtbl)
goto out_nomem;
}

3
fs/reiserfs/journal.c
View File

@ -350,7 +350,8 @@ static struct reiserfs_journal_cnode *allocate_cnodes(int num_cnodes)
if (num_cnodes <= 0) {
return NULL;
}
head = vzalloc(num_cnodes * sizeof(struct reiserfs_journal_cnode));
head = vzalloc(array_size(num_cnodes,
sizeof(struct reiserfs_journal_cnode)));
if (!head) {
return NULL;
}

3
fs/reiserfs/resize.c
View File

@ -120,7 +120,8 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
* array of bitmap block pointers
*/
bitmap =
vzalloc(sizeof(struct reiserfs_bitmap_info) * bmap_nr_new);
vzalloc(array_size(bmap_nr_new,
sizeof(struct reiserfs_bitmap_info)));
if (!bitmap) {
/*
* Journal bitmaps are still supersized, but the

8
kernel/bpf/verifier.c
View File

@ -5206,7 +5206,8 @@ static int adjust_insn_aux_data(struct bpf_verifier_env *env, u32 prog_len,
if (cnt == 1)
return 0;
new_data = vzalloc(sizeof(struct bpf_insn_aux_data) * prog_len);
new_data = vzalloc(array_size(prog_len,
sizeof(struct bpf_insn_aux_data)));
if (!new_data)
return -ENOMEM;
memcpy(new_data, old_data, sizeof(struct bpf_insn_aux_data) * off);
@ -5870,8 +5871,9 @@ int bpf_check(struct bpf_prog **prog, union bpf_attr *attr)
return -ENOMEM;
log = &env->log;
env->insn_aux_data = vzalloc(sizeof(struct bpf_insn_aux_data) *
(*prog)->len);
env->insn_aux_data =
vzalloc(array_size(sizeof(struct bpf_insn_aux_data),
(*prog)->len));
ret = -ENOMEM;
if (!env->insn_aux_data)
goto err_free_env;

2
kernel/kexec_file.c
View File

@ -793,7 +793,7 @@ static int kexec_purgatory_setup_sechdrs(struct purgatory_info *pi,
* The section headers in kexec_purgatory are read-only. In order to
* have them modifiable make a temporary copy.
*/
sechdrs = vzalloc(pi->ehdr->e_shnum * sizeof(Elf_Shdr));
sechdrs = vzalloc(array_size(sizeof(Elf_Shdr), pi->ehdr->e_shnum));
if (!sechdrs)
return -ENOMEM;
memcpy(sechdrs, (void *)pi->ehdr + pi->ehdr->e_shoff,

10
lib/test_firmware.c
View File

@ -618,8 +618,9 @@ static ssize_t trigger_batched_requests_store(struct device *dev,
mutex_lock(&test_fw_mutex);
test_fw_config->reqs = vzalloc(sizeof(struct test_batched_req) *
test_fw_config->num_requests * 2);
test_fw_config->reqs =
vzalloc(array3_size(sizeof(struct test_batched_req),
test_fw_config->num_requests, 2));
if (!test_fw_config->reqs) {
rc = -ENOMEM;
goto out_unlock;
@ -720,8 +721,9 @@ ssize_t trigger_batched_requests_async_store(struct device *dev,
mutex_lock(&test_fw_mutex);
test_fw_config->reqs = vzalloc(sizeof(struct test_batched_req) *
test_fw_config->num_requests * 2);
test_fw_config->reqs =
vzalloc(array3_size(sizeof(struct test_batched_req),
test_fw_config->num_requests, 2));
if (!test_fw_config->reqs) {
rc = -ENOMEM;
goto out;

5
lib/test_kmod.c
View File

@ -779,8 +779,9 @@ static int kmod_config_sync_info(struct kmod_test_device *test_dev)
struct test_config *config = &test_dev->config;
free_test_dev_info(test_dev);
test_dev->info = vzalloc(config->num_threads *
sizeof(struct kmod_test_device_info));
test_dev->info =
vzalloc(array_size(sizeof(struct kmod_test_device_info),
config->num_threads));
if (!test_dev->info)
return -ENOMEM;

13
lib/test_rhashtable.c
View File

@ -285,12 +285,14 @@ static int __init test_rhltable(unsigned int entries)
if (entries == 0)
entries = 1;
rhl_test_objects = vzalloc(sizeof(*rhl_test_objects) * entries);
rhl_test_objects = vzalloc(array_size(entries,
sizeof(*rhl_test_objects)));
if (!rhl_test_objects)
return -ENOMEM;
ret = -ENOMEM;
obj_in_table = vzalloc(BITS_TO_LONGS(entries) * sizeof(unsigned long));
obj_in_table = vzalloc(array_size(sizeof(unsigned long),
BITS_TO_LONGS(entries)));
if (!obj_in_table)
goto out_free;
@ -706,7 +708,8 @@ static int __init test_rht_init(void)
test_rht_params.max_size = max_size ? : roundup_pow_of_two(entries);
test_rht_params.nelem_hint = size;
objs = vzalloc((test_rht_params.max_size + 1) * sizeof(struct test_obj));
objs = vzalloc(array_size(sizeof(struct test_obj),
test_rht_params.max_size + 1));
if (!objs)
return -ENOMEM;
@ -753,10 +756,10 @@ static int __init test_rht_init(void)
pr_info("Testing concurrent rhashtable access from %d threads\n",
tcount);
sema_init(&prestart_sem, 1 - tcount);
tdata = vzalloc(tcount * sizeof(struct thread_data));
tdata = vzalloc(array_size(tcount, sizeof(struct thread_data)));
if (!tdata)
return -ENOMEM;
objs = vzalloc(tcount * entries * sizeof(struct test_obj));
objs = vzalloc(array3_size(sizeof(struct test_obj), tcount, entries));
if (!objs) {
vfree(tdata);
return -ENOMEM;

6
net/core/ethtool.c
View File

@ -1852,7 +1852,7 @@ static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
WARN_ON_ONCE(!ret);
gstrings.len = ret;
data = vzalloc(gstrings.len * ETH_GSTRING_LEN);
data = vzalloc(array_size(gstrings.len, ETH_GSTRING_LEN));
if (gstrings.len && !data)
return -ENOMEM;
@ -1952,7 +1952,7 @@ static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
return -EFAULT;
stats.n_stats = n_stats;
data = vzalloc(n_stats * sizeof(u64));
data = vzalloc(array_size(n_stats, sizeof(u64)));
if (n_stats && !data)
return -ENOMEM;
@ -1996,7 +1996,7 @@ static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)
return -EFAULT;
stats.n_stats = n_stats;
data = vzalloc(n_stats * sizeof(u64));
data = vzalloc(array_size(n_stats, sizeof(u64)));
if (n_stats && !data)
return -ENOMEM;

2
net/packet/af_packet.c
View File

@ -4161,7 +4161,7 @@ static char *alloc_one_pg_vec_page(unsigned long order)
return buffer;
/* __get_free_pages failed, fall back to vmalloc */
buffer = vzalloc((1 << order) * PAGE_SIZE);
buffer = vzalloc(array_size((1 << order), PAGE_SIZE));
if (buffer)
return buffer;