[PATCH 3/6] ipv4: remove redundant null pointer check before kfree_skb

[zhong jiang]

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@xxxxxxxxxx>
---
 net/ipv4/ip_fragment.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

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 @@ static void ip_expire(struct timer_list *t)
 	spin_unlock(&qp->q.lock);
 out_rcu_unlock:
 	rcu_read_unlock();
-	if (head)
-		kfree_skb(head);
+	kfree_skb(head);
 	ipq_put(qp);
 }
 
-- 
1.7.12.4