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xfs: Use kvcalloc() instead of kvzalloc()

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Use 2-factor argument multiplication form kvcalloc() instead of
kvzalloc().

Link: https://github.com/KSPP/linux/issues/162
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
This commit is contained in:
Gustavo A. R. Silva 2021-09-28 17:33:07 -05:00
parent 2a12e00035
commit c2e4e3b756
1 changed files with 3 additions and 3 deletions
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6
fs/xfs/xfs_ioctl.c
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@ -1547,7 +1547,7 @@ xfs_ioc_getbmap(
if (bmx.bmv_count > ULONG_MAX / recsize) if (bmx.bmv_count > ULONG_MAX / recsize)
return -ENOMEM; return -ENOMEM;
buf = kvzalloc(bmx.bmv_count * sizeof(*buf), GFP_KERNEL); buf = kvcalloc(bmx.bmv_count, sizeof(*buf), GFP_KERNEL);
if (!buf) if (!buf)
return -ENOMEM; return -ENOMEM;
@ -1601,11 +1601,11 @@ xfs_ioc_getfsmap(
*/ */
count = min_t(unsigned int, head.fmh_count, count = min_t(unsigned int, head.fmh_count,
131072 / sizeof(struct fsmap)); 131072 / sizeof(struct fsmap));
recs = kvzalloc(count * sizeof(struct fsmap), GFP_KERNEL); recs = kvcalloc(count, sizeof(struct fsmap), GFP_KERNEL);
if (!recs) { if (!recs) {
count = min_t(unsigned int, head.fmh_count, count = min_t(unsigned int, head.fmh_count,
PAGE_SIZE / sizeof(struct fsmap)); PAGE_SIZE / sizeof(struct fsmap));
recs = kvzalloc(count * sizeof(struct fsmap), GFP_KERNEL); recs = kvcalloc(count, sizeof(struct fsmap), GFP_KERNEL);
if (!recs) if (!recs)
return -ENOMEM; return -ENOMEM;
} }