[patch 090/101] zsmalloc: Delete an unnecessary check before the function call "iput"

[patch 090/101] zsmalloc: Delete an unnecessary check before the function call "iput"

[akpm]

From: Markus Elfring <elfring@users.sourceforge.net>
Subject: zsmalloc: Delete an unnecessary check before the function call "iput"

iput() 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.

Link: http://lkml.kernel.org/r/559cf499-4a01-25f9-c87f-24d906626a57@users.sourceforge.net
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/zsmalloc.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff -puN mm/zsmalloc.c~zsmalloc-delete-an-unnecessary-check-before-the-function-call-iput mm/zsmalloc.c
--- a/mm/zsmalloc.c~zsmalloc-delete-an-unnecessary-check-before-the-function-call-iput
+++ a/mm/zsmalloc.c
@@ -2174,8 +2174,7 @@ static int zs_register_migration(struct
 static void zs_unregister_migration(struct zs_pool *pool)
 {
 	flush_work(&pool->free_work);
-	if (pool->inode)
-		iput(pool->inode);
+	iput(pool->inode);
 }
 
 /*
_