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authorYang Shi <yang.shi@linux.alibaba.com>2020-04-01 21:09:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-02 09:35:31 -0700
commit565dc842313fde3d0a2e817f96b42bd6a1eb0cad (patch)
tree96c7a1c7bd1749abeb64af931347745dc0ceffd3 /mm/vmpressure.c
parentfe925c0cb05b5616353e8b68eb914c9840cad2f9 (diff)
mm: vmpressure: don't need call kfree if kstrndup fails
When kstrndup fails, no memory was allocated and we can exit directly. [david@redhat.com: reword changelog] Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: David Rientjes <rientjes@google.com> Link: http://lkml.kernel.org/r/1581398649-125989-1-git-send-email-yang.shi@linux.alibaba.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmpressure.c')
-rw-r--r--mm/vmpressure.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/mm/vmpressure.c b/mm/vmpressure.c
index 4bac22fe1aa2..0590f0033448 100644
--- a/mm/vmpressure.c
+++ b/mm/vmpressure.c
@@ -371,10 +371,8 @@ int vmpressure_register_event(struct mem_cgroup *memcg,
int ret = 0;
spec_orig = spec = kstrndup(args, MAX_VMPRESSURE_ARGS_LEN, GFP_KERNEL);
- if (!spec) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!spec)
+ return -ENOMEM;
/* Find required level */
token = strsep(&spec, ",");