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/[email protected] Signed-off-by: Yang Li <[email protected]> Reported-by: Abaci Robot <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: David Hildenbrand <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
vieko · Feb 24, 2021 · 8a26016 · 8a26016
1 parent 802f1d5
commit 8a26016
Showing 1 changed file with 1 addition and 2 deletions.
diff --git 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);
 	}
 }