[PATCH] fs-ext4 crypto: Delete an unnecessary check before the function call "key_put"

[SF Markus Elfring <elfring@users.sourceforge.net>]

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 26 Jun 2015 16:10:54 +0200
Subject: [PATCH] fs-ext4 crypto: Delete an unnecessary check before the
 function call "key_put"

The key_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 <elfring@users.sourceforge.net>
---
 fs/ext4/crypto_key.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/ext4/crypto_key.c b/fs/ext4/crypto_key.c
index 442d24e..f8d15ae 100644
--- a/fs/ext4/crypto_key.c
+++ b/fs/ext4/crypto_key.c
@@ -89,8 +89,7 @@ void ext4_free_crypt_info(struct ext4_crypt_info *ci)
 	if (!ci)
 		return;
 
-	if (ci->ci_keyring_key)
-		key_put(ci->ci_keyring_key);
+	key_put(ci->ci_keyring_key);
 	crypto_free_ablkcipher(ci->ci_ctfm);
 	kmem_cache_free(ext4_crypt_info_cachep, ci);
 }
-- 
2.4.4