[PATCH 1/1] mm/zswap: Deletion of an unnecessary check before the function call "free_percpu"

SF Markus Elfring
2014-11-17T17:40:29Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Mon, 17 Nov 2014 18:33:33 +0100

The free_percpu() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
mm/zswap.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index ea064c1..35629f0 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -152,8 +152,7 @@ static int __init zswap_comp_init(void)
static void zswap_comp_exit(void)
{
/* free percpu transforms */
- if (zswap_comp_pcpu_tfms)
- free_percpu(zswap_comp_pcpu_tfms);
+ free_percpu(zswap_comp_pcpu_tfms);
}

/*********************************
--
2.1.3