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Message-Id: <20111216194554.606846120@clark.kroah.org> Date: Fri, 16 Dec 2011 11:45:01 -0800 From: Greg KH <gregkh@...e.de> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Thomas Gleixner <tglx@...utronix.de>, John Stultz <john.stultz@...aro.org> Subject: [04/53] alarmtimers: Fix time comparison 3.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thomas Gleixner <tglx@...utronix.de> commit c9c024b3f3e07d087974db4c0dc46217fff3a6c0 upstream. The expiry function compares the timer against current time and does not expire the timer when the expiry time is >= now. That's wrong. If the timer is set for now, then it must expire. Make the condition expiry > now for breaking out the loop. Signed-off-by: Thomas Gleixner <tglx@...utronix.de> Acked-by: John Stultz <john.stultz@...aro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de> --- kernel/time/alarmtimer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -181,7 +181,7 @@ static enum hrtimer_restart alarmtimer_f struct alarm *alarm; ktime_t expired = next->expires; - if (expired.tv64 >= now.tv64) + if (expired.tv64 > now.tv64) break; alarm = container_of(next, struct alarm, node); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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