---

yaml --- r: 202555 b: refs/heads/master c: 694f690 h: refs/heads/master i: 202553: 9643150 202551: 7c80a98 v: v3
git-mirror · Aug 4, 2010 · c091cb7 · c091cb7
1 parent 5b55627
commit c091cb7
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Showing 2 changed files with 7 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e75aa85892b2ee78c79edac720868cbef16e62eb
+refs/heads/master: 694f690d27dadccc8cb9d90532e76593b61fe098
diff --git a/trunk/kernel/signal.c b/trunk/kernel/signal.c
@@ -637,7 +637,7 @@ static inline bool si_fromuser(const struct siginfo *info)
 
 /*
  * Bad permissions for sending the signal
- * - the caller must hold at least the RCU read lock
+ * - the caller must hold the RCU read lock
  */
 static int check_kill_permission(int sig, struct siginfo *info,
 				 struct task_struct *t)
@@ -1127,11 +1127,14 @@ struct sighand_struct *lock_task_sighand(struct task_struct *tsk, unsigned long
 
 /*
  * send signal info to all the members of a group
- * - the caller must hold the RCU read lock at least
  */
 int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
 {
-	int ret = check_kill_permission(sig, info, p);
+	int ret;
+
+	rcu_read_lock();
+	ret = check_kill_permission(sig, info, p);
+	rcu_read_unlock();
 
 	if (!ret && sig)
 		ret = do_send_sig_info(sig, info, p, true);