# \[PATCH 1/1\] bcache: Deletion of an unnecessary check before the function call "kobject\_put"

- From: SF Markus Elfring \<hidden\>
- Date: 2014-11-19 20:34:36 
- List: linux-raid
- Page: https://ratatoskr.run/linux-raid/2014/11/4378088
- Thread: https://ratatoskr.run/linux-bcache/2014/11/4378088/t.md

```text
From: Markus Elfring <redacted>
Date: Wed, 19 Nov 2014 21:25:39 +0100

The kobject_put() 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 <redacted>
---
 drivers/md/bcache/super.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index d4713d0..1443c55 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -2076,8 +2076,7 @@ static void bcache_exit(void)
 {
 	bch_debug_exit();
 	bch_request_exit();
-	if (bcache_kobj)
-		kobject_put(bcache_kobj);
+	kobject_put(bcache_kobj);
 	if (bcache_wq)
 		destroy_workqueue(bcache_wq);
 	if (bcache_major)
-- 
2.1.3
```