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net/sched: remove redundant null check on head

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head is previously null checked and so the 2nd null check on head
is redundant and therefore can be removed.

Detected by CoverityScan, CID#1399505 ("Logically dead code")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Colin Ian King 2017-05-03 14:50:40 +01:00 • committed by David S. Miller
parent 8b485ce698
commit 985538eee0
1 changed files with 1 additions and 2 deletions
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3
net/sched/cls_matchall.c
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@ -203,8 +203,7 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
*arg = (unsigned long) head;
rcu_assign_pointer(tp->root, new);
if (head)
call_rcu(&head->rcu, mall_destroy_rcu);
call_rcu(&head->rcu, mall_destroy_rcu);
return 0;
err_replace_hw_filter: