[patch 06/16] rcu: torture: Add missing destroy_timer_on_stack()

[Thomas Gleixner <tglx@linutronix.de>]

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Otherwise we leak a tracking object if DEBUG_OBJECTS is enabled.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Josh Triplett <josh@freedesktop.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
---
 kernel/rcu/torture.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Index: tip/kernel/rcu/torture.c
===================================================================
--- tip.orig/kernel/rcu/torture.c
+++ tip/kernel/rcu/torture.c
@@ -1038,8 +1038,10 @@ rcu_torture_reader(void *arg)
 	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
 	VERBOSE_PRINTK_STRING("rcu_torture_reader task stopping");
 	rcutorture_shutdown_absorb("rcu_torture_reader");
-	if (irqreader && cur_ops->irq_capable)
+	if (irqreader && cur_ops->irq_capable) {
 		del_timer_sync(&t);
+		destroy_timer_on_stack(&t);
+	}
 	while (!kthread_should_stop())
 		schedule_timeout_uninterruptible(1);
 	return 0;