* [PATCH] net/sched: remove redundant null check on head
@ 2017-05-03 13:50 Colin King
2017-05-03 14:15 ` Jiri Pirko
2017-05-04 15:01 ` David Miller
0 siblings, 2 replies; 3+ messages in thread
From: Colin King @ 2017-05-03 13:50 UTC (permalink / raw)
To: Jamal Hadi Salim, Cong Wang, Jiri Pirko, netdev
Cc: kernel-janitors, David S . Miller, linux-kernel
From: Colin Ian King <colin.king@canonical.com>
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>
---
net/sched/cls_matchall.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index 2efb36c08f2a..dee469fed967 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -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:
--
2.11.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] net/sched: remove redundant null check on head
2017-05-03 13:50 [PATCH] net/sched: remove redundant null check on head Colin King
@ 2017-05-03 14:15 ` Jiri Pirko
2017-05-04 15:01 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: Jiri Pirko @ 2017-05-03 14:15 UTC (permalink / raw)
To: Colin King
Cc: Jamal Hadi Salim, Cong Wang, netdev, kernel-janitors,
David S . Miller, linux-kernel
Wed, May 03, 2017 at 03:50:40PM CEST, colin.king@canonical.com wrote:
>From: Colin Ian King <colin.king@canonical.com>
>
>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>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] net/sched: remove redundant null check on head
2017-05-03 13:50 [PATCH] net/sched: remove redundant null check on head Colin King
2017-05-03 14:15 ` Jiri Pirko
@ 2017-05-04 15:01 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: David Miller @ 2017-05-04 15:01 UTC (permalink / raw)
To: colin.king
Cc: jhs, xiyou.wangcong, jiri, netdev, kernel-janitors, linux-kernel
From: Colin King <colin.king@canonical.com>
Date: Wed, 3 May 2017 14:50:40 +0100
> From: Colin Ian King <colin.king@canonical.com>
>
> 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>
Applied.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2017-05-04 15:03 UTC | newest]
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2017-05-03 13:50 [PATCH] net/sched: remove redundant null check on head Colin King
2017-05-03 14:15 ` Jiri Pirko
2017-05-04 15:01 ` David Miller
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