From: Markus Elfring <[email protected]>
Date: Wed, 24 Jun 2015 15:16:35 +0200

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 <[email protected]>
---
 security/keys/process_keys.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index bd536cb..225dd08 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -242,9 +242,7 @@ int install_session_keyring_to_cred(struct cred *cred, 
struct key *keyring)
        old = cred->session_keyring;
        rcu_assign_pointer(cred->session_keyring, keyring);
 
-       if (old)
-               key_put(old);
-
+       key_put(old);
        return 0;
 }
 
-- 
2.4.4

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