Commit 6d528b08 authored Aug 22, 2011 by David Howells Committed by James Morris Aug 23, 2011

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>

parent 3ecf1b4f

security/keys/keyring.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -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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