Commit 565dc842 authored by Yang Shi's avatar Yang Shi Committed by Linus Torvalds

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: default avatarYang Shi <yang.shi@linux.alibaba.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: default avatarDavid Hildenbrand <david@redhat.com>
Acked-by: default avatarDavid Rientjes <rientjes@google.com>
Link: http://lkml.kernel.org/r/1581398649-125989-1-git-send-email-yang.shi@linux.alibaba.comSigned-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent fe925c0c
...@@ -371,10 +371,8 @@ int vmpressure_register_event(struct mem_cgroup *memcg, ...@@ -371,10 +371,8 @@ int vmpressure_register_event(struct mem_cgroup *memcg,
int ret = 0; int ret = 0;
spec_orig = spec = kstrndup(args, MAX_VMPRESSURE_ARGS_LEN, GFP_KERNEL); spec_orig = spec = kstrndup(args, MAX_VMPRESSURE_ARGS_LEN, GFP_KERNEL);
if (!spec) { if (!spec)
ret = -ENOMEM; return -ENOMEM;
goto out;
}
/* Find required level */ /* Find required level */
token = strsep(&spec, ","); token = strsep(&spec, ",");
......
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