From: zhong jiang <zhongjiang@huawei.com>
Date: Thu, 20 Sep 2018 14:27:28 +0000 (+0800)
Subject: mISDN: remove redundant null pointer check before kfree_skb
X-Git-Tag: v4.20-rc1~27^2~300
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=66ab23598696072c19344591f8d9846332e66e23;p=thirdparty%2Flinux.git

mISDN: remove redundant null pointer check before kfree_skb

kfree_skb has taken the null pointer into account. hence it is safe
to remove the redundant null pointer check before kfree_skb.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c
index 18c0a1281914f..15d3ca37669a4 100644
--- a/drivers/isdn/mISDN/socket.c
+++ b/drivers/isdn/mISDN/socket.c
@@ -236,8 +236,7 @@ mISDN_sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 	}
 
 done:
-	if (skb)
-		kfree_skb(skb);
+	kfree_skb(skb);
 	release_sock(sk);
 	return err;
 }