summary refs log tree commit diff
path: root/security/keys/keyctl.c
diff options
context:
space:
mode:
authorDavid Howells <dhowells@redhat.com>2008-12-29 00:41:51 +0000
committerJames Morris <jmorris@namei.org>2008-12-29 14:24:43 +1100
commiteca1bf5b4fab56d2feb1572d34d59fcd92ea7df3 (patch)
tree58ce85049625d01d52f3b32a6035bce9dbbc4ebf /security/keys/keyctl.c
parent3c92ec8ae91ecf59d88c798301833d7cf83f2179 (diff)
downloadlinux-eca1bf5b4fab56d2feb1572d34d59fcd92ea7df3.tar.gz
KEYS: Fix variable uninitialisation warnings
Fix variable uninitialisation warnings introduced in:

	commit 8bbf4976b59fc9fc2861e79cab7beb3f6d647640
	Author: David Howells <dhowells@redhat.com>
	Date:   Fri Nov 14 10:39:14 2008 +1100

	KEYS: Alter use of key instantiation link-to-keyring argument

As:

  security/keys/keyctl.c: In function 'keyctl_negate_key':
  security/keys/keyctl.c:976: warning: 'dest_keyring' may be used uninitialized in this function
  security/keys/keyctl.c: In function 'keyctl_instantiate_key':
  security/keys/keyctl.c:898: warning: 'dest_keyring' may be used uninitialized in this function

Some versions of gcc notice that get_instantiation_key() doesn't always set
*_dest_keyring, but fail to observe that if this happens then *_dest_keyring
will not be read by the caller.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/keys/keyctl.c')
-rw-r--r--security/keys/keyctl.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 7c72baa02f2e..6688765bd8b9 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -838,11 +838,11 @@ static long get_instantiation_keyring(key_serial_t ringid,
 {
 	key_ref_t dkref;
 
+	*_dest_keyring = NULL;
+
 	/* just return a NULL pointer if we weren't asked to make a link */
-	if (ringid == 0) {
-		*_dest_keyring = NULL;
+	if (ringid == 0)
 		return 0;
-	}
 
 	/* if a specific keyring is nominated by ID, then use that */
 	if (ringid > 0) {