From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
In case of error, the function crypto_alloc_hash() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
---
drivers/staging/lustre/lustre/obdclass/capa.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/lustre/lustre/obdclass/capa.c b/drivers/staging/lustre/lustre/obdclass/capa.c
index 68d797b..039232d 100644
--- a/drivers/staging/lustre/lustre/obdclass/capa.c
+++ b/drivers/staging/lustre/lustre/obdclass/capa.c
@@ -273,10 +273,10 @@ int capa_hmac(__u8 *hmac, struct lustre_capa *capa, __u8 *key)
alg = &capa_hmac_algs[capa_alg(capa)];
tfm = crypto_alloc_hash(alg->ha_name, 0, 0);
- if (!tfm) {
+ if (IS_ERR(tfm)) {
CERROR("crypto_alloc_tfm failed, check whether your kernel"
"has crypto support!\n");
- return -ENOMEM;
+ return PTR_ERR(tfm);
}
keylen = alg->ha_keylen;
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