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percpu: fix static checker warnings in pcpu_destroy_chunk

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From 5021b97f4026334d2c8dfad80797dd1028cddd73 Mon Sep 17 00:00:00 2001
From: Dennis Zhou <dennisz@fb.com>
Date: Thu, 29 Jun 2017 07:11:41 -0700

Add NULL check in pcpu_destroy_chunk to correct static checker warnings.

Signed-off-by: Dennis Zhou <dennisz@fb.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Dennis Zhou
2017-06-29 10:56:26 -04:00
committed by Tejun Heo
parent 303abfdf76
commit e3efe3db93
2 changed files with 8 additions and 2 deletions
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5
mm/percpu-vm.c
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@@ -352,10 +352,13 @@ static struct pcpu_chunk *pcpu_create_chunk(void)
static void pcpu_destroy_chunk(struct pcpu_chunk *chunk)
{
if (!chunk)
return;
pcpu_stats_chunk_dealloc();
trace_percpu_destroy_chunk(chunk->base_addr);
if (chunk && chunk->data)
if (chunk->data)
pcpu_free_vm_areas(chunk->data, pcpu_nr_groups);
pcpu_free_chunk(chunk);
}