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authorThomas Gleixner <tglx@linutronix.de>2010-05-10 11:59:37 +0200
committerThomas Gleixner <tglx@linutronix.de>2010-05-10 14:20:42 +0200
commitdbb6be6d5e974c42bbecd183effaa0df69e1dd8b (patch)
tree5735cb47e70853d057a9881dd0ce44b83e88fa63 /security/keys/user_defined.c
parent6a867a395558a7f882d041783e4cdea6744ca2bf (diff)
parentb57f95a38233a2e73b679bea4a5453a1cc2a1cc9 (diff)
Merge branch 'linus' into timers/core
Reason: Further posix_cpu_timer patches depend on mainline changes Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'security/keys/user_defined.c')
-rw-r--r--security/keys/user_defined.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/security/keys/user_defined.c b/security/keys/user_defined.c
index 7c687d56822..e9aa0792965 100644
--- a/security/keys/user_defined.c
+++ b/security/keys/user_defined.c
@@ -199,7 +199,8 @@ long user_read(const struct key *key, char __user *buffer, size_t buflen)
struct user_key_payload *upayload;
long ret;
- upayload = rcu_dereference(key->payload.data);
+ upayload = rcu_dereference_protected(
+ key->payload.data, rwsem_is_locked(&((struct key *)key)->sem));
ret = upayload->datalen;
/* we can return the data as is */