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crypto: nx - Hold the reference returned by of_find_compatible_node

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In nx842_pseries_init(), we should hold the reference returned by
of_find_compatible_node() and use it to call of_node_put to keep
refcount balance.

Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Liang He 2022-06-30 16:36:57 +08:00 committed by Herbert Xu
parent 9984a64473
commit 8ccc9cc47c
1 changed files with 4 additions and 1 deletions
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5
drivers/crypto/nx/nx-common-pseries.c
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@ -1208,10 +1208,13 @@ static struct vio_driver nx842_vio_driver = {
static int __init nx842_pseries_init(void)
{
struct nx842_devdata *new_devdata;
struct device_node *np;
int ret;
if (!of_find_compatible_node(NULL, NULL, "ibm,compression"))
np = of_find_compatible_node(NULL, NULL, "ibm,compression");
if (!np)
return -ENODEV;
of_node_put(np);
RCU_INIT_POINTER(devdata, NULL);
new_devdata = kzalloc(sizeof(*new_devdata), GFP_KERNEL);