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| author | Yang Li <abaci-bugfix@linux.alibaba.com> | 2021-02-24 21:04:05 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-24 22:38:29 +0100 |
| commit | 8a260162f9a0634db9a1ee7b8db276e7a00ee1d9 (patch) | |
| tree | 31249ba44580e2712247f6f90f7e25d762d874eb | |
| parent | mm: page_counter: re-layout structure to reduce false sharing (diff) | |
| download | linux-8a260162f9a0634db9a1ee7b8db276e7a00ee1d9.tar.xz linux-8a260162f9a0634db9a1ee7b8db276e7a00ee1d9.zip | |
mm/memcontrol: remove redundant NULL check
Fix below warnings reported by coccicheck:
mm/memcontrol.c:451:3-9: WARNING: NULL check before some freeing functions is not needed.
Link: https://lkml.kernel.org/r/1611216029-34397-1-git-send-email-abaci-bugfix@linux.alibaba.com
Signed-off-by: Yang Li <abaci-bugfix@linux.alibaba.com>
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/memcontrol.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index dce5291525a5..ed5cc78a8dbf 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -452,8 +452,7 @@ 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); } } |