lkml.org 
[lkml]   [2021]   [Feb]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] mm/memcontrol: remove redundant NULL check
From
Date
On 21.01.21 09:00, Yang Li wrote:
> Fix below warnings reported by coccicheck:
> ./mm/memcontrol.c:451:3-9: WARNING: NULL check before some freeing
> functions is not needed.
>
> Reported-by: Abaci Robot <abaci@linux.alibaba.com>
> Signed-off-by: Yang Li <abaci-bugfix@linux.alibaba.com>
> ---
> mm/memcontrol.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 605f671..f6a561b 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -447,8 +447,7 @@ static void memcg_free_shrinker_maps(struct mem_cgroup *memcg)
> for_each_node(nid) {
> pn = mem_cgroup_nodeinfo(memcg, nid);
> map = rcu_dereference_protected(pn->shrinker_map, true);
> - if (map)
> - kvfree(map);
> + kvfree(map);
> rcu_assign_pointer(pn->shrinker_map, NULL);
> }
> }
>

Reviewed-by: David Hildenbrand <david@redhat.com>

--
Thanks,

David / dhildenb

\
 
 \ /
  Last update: 2021-02-02 11:15    [W:0.048 / U:0.432 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site