Commit 167b1de3 authored Dec 07, 2007 by Thomas Gleixner Committed by Ingo Molnar Dec 07, 2007

clockevents: warn once when program_event() is called with negative expiry



The hrtimer problem with large relative timeouts resulting in a
negative expiry time went unnoticed as there is no check in the
clockevents_program_event() code. Put a check there with a WARN_ONCE
to avoid such problems in the future.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 62f0f61e

kernel/time/clockevents.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -78,6 +78,11 @@ int clockevents_program_event(struct clock_event_device *dev, ktime_t expires,
		unsigned long long clc;
		int64_t delta;

		if (unlikely(expires.tv64 < 0)) {
		WARN_ON_ONCE(1);
		return -ETIME;
		}

		delta = ktime_to_ns(ktime_sub(expires, now));

		if (delta <= 0)