From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Tue, 18 Mar 2014 03:56:45 +0000 (-0700)
Subject: rcutorture: Check for rcu_torture_fqs creation errors
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d0d0606e2c13ad445a58b9d9547de617429cabf9;p=linux-beck.git

rcutorture: Check for rcu_torture_fqs creation errors

The return value from torture_create_kthread() is currently ignored
when creating the rcu_torture_fqs kthread.  This commit therefore
captures the return value so that it can be tested for errors.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 693a90fcee83..dfec2582899f 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1577,7 +1577,8 @@ rcu_torture_init(void)
 		fqs_duration = 0;
 	if (fqs_duration) {
 		/* Create the fqs thread */
-		torture_create_kthread(rcu_torture_fqs, NULL, fqs_task);
+		firsterr = torture_create_kthread(rcu_torture_fqs, NULL,
+						  fqs_task);
 		if (firsterr)
 			goto unwind;
 	}