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authorDavid Howells <dhowells@redhat.com>2011-08-22 14:08:51 +0100
committerJames Morris <jmorris@namei.org>2011-08-23 09:57:34 +1000
commit6d528b082294f0ddabd6368297546a2c0b67d4fe (patch)
tree268bf5dbd454c689947c51867bf5b77e21c97eae /security/keys
parent3ecf1b4f347210e39b156177e5b8a26ff8d00279 (diff)
downloadop-kernel-dev-6d528b082294f0ddabd6368297546a2c0b67d4fe.zip
op-kernel-dev-6d528b082294f0ddabd6368297546a2c0b67d4fe.tar.gz
KEYS: __key_link() should use the RCU deref wrapper for keyring payloads
__key_link() should use the RCU deref wrapper rcu_dereference_locked_keyring() for accessing keyring payloads rather than calling rcu_dereference_protected() directly. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/keys')
-rw-r--r--security/keys/keyring.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 30e242f..37a7f3b 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -860,8 +860,7 @@ void __key_link(struct key *keyring, struct key *key,
kenter("%d,%d,%p", keyring->serial, key->serial, nklist);
- klist = rcu_dereference_protected(keyring->payload.subscriptions,
- rwsem_is_locked(&keyring->sem));
+ klist = rcu_dereference_locked_keyring(keyring);
atomic_inc(&key->usage);
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