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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>
This commit is contained in:
David Howells 2011-08-22 14:08:51 +01:00 committed by James Morris
parent 3ecf1b4f34
commit 6d528b0822
1 changed files with 1 additions and 2 deletions
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security/keys/keyring.c
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@ -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);