ipv4: Use IS_ERR_OR_NULL().

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 2aa69c8ae60c..52271947a471 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3243,7 +3243,7 @@ __tcp_alloc_md5sig_pool(struct sock *sk)
                 struct crypto_hash *hash;
 
                 hash = crypto_alloc_hash("md5", 0, CRYPTO_ALG_ASYNC);
-                if (!hash || IS_ERR(hash))
+                if (IS_ERR_OR_NULL(hash))
                         goto out_free;
 
                 per_cpu_ptr(pool, cpu)->md5_desc.tfm = hash;