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authorViresh Kumar <viresh.kumar@linaro.org>2014-02-28 14:15:21 +0530
committerThomas Gleixner <tglx@linutronix.de>2014-03-04 12:30:29 +0100
commitc24a4a369419c360c323865b91198878275c1481 (patch)
treecb526ee4537a3905c50dfc8a06413967bdf904ee /kernel
parentbce19369515ff77033d0916cfbc356eca2be9f63 (diff)
timer: Check failure of timer_cpu_notify() before calling init_timer_stats()
timer_cpu_notify() should return NOTIFY_OK and nothing else. Anything else would trigger a BUG_ON(). Return value of this routine is already checked correctly but is done after issuing a call to init_timer_stats(). The right order would be to check the error case first and then call init_timer_stats(). Lets do it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: linaro-kernel@lists.linaro.org Cc: fweisbec@gmail.com Cc: tj@kernel.org Cc: peterz@infradead.org Link: http://lkml.kernel.org/r/c439f5b6bbc2047e1662f4d523350531425bcf9d.1393576981.git.viresh.kumar@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/timer.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/timer.c b/kernel/timer.c
index a71bdfdb51e7..31824ef3eb96 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1681,9 +1681,9 @@ void __init init_timers(void)
err = timer_cpu_notify(&timers_nb, (unsigned long)CPU_UP_PREPARE,
(void *)(long)smp_processor_id());
- init_timer_stats();
-
BUG_ON(err != NOTIFY_OK);
+
+ init_timer_stats();
register_cpu_notifier(&timers_nb);
open_softirq(TIMER_SOFTIRQ, run_timer_softirq);
}