LU-4423 obdclass: fix return value check in capa_hmac()

[fs/lustre-release.git] / lustre / obdclass / capa.c

diff --git a/lustre/obdclass/capa.c b/lustre/obdclass/capa.c
index 5f5bc1b..29c40c1 100644 (file)
--- a/lustre/obdclass/capa.c
+++ b/lustre/obdclass/capa.c
@@ -258,10 +258,10 @@ 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;