From: zhong jiang <zhongjiang@huawei.com>
Date: Thu, 20 Sep 2018 09:37:43 +0000 (+0800)
Subject: ipv4: remove redundant null pointer check before kfree_skb
X-Git-Tag: v5.4-rc1~2266^2~303^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1d08962ff1e65e29019e5df07188413a85769a9d;p=platform%2Fkernel%2Flinux-rpi.git

ipv4: 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/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index da930b0..13f4d18 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -260,8 +260,7 @@ out:
 	spin_unlock(&qp->q.lock);
 out_rcu_unlock:
 	rcu_read_unlock();
-	if (head)
-		kfree_skb(head);
+	kfree_skb(head);
 	ipq_put(qp);
 }