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Commit cb5de2f8 authored by John Stultz's avatar John Stultz
Browse files

time: Catch invalid timespec sleep values in __timekeeping_inject_sleeptime 



Arve suggested making sure we catch possible negative sleep time
intervals that could be passed into timekeeping_inject_sleeptime.

CC: Arve Hjønnevåg <arve@android.com>
CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
parent e08f6d41

kernel/time/timekeeping.c

+6 −0
Original line number Diff line number Diff line
@@ -604,6 +604,12 @@ static struct timespec timekeeping_suspend_time; 
 */

static void __timekeeping_inject_sleeptime(struct timespec *delta)

{

	if (!timespec_valid(delta)) {

		printk(KERN_WARN "__timekeeping_inject_sleeptime: Invalid "

					"sleep delta value!\n");

		return;

	}



	xtime = timespec_add(xtime, *delta);

	wall_to_monotonic = timespec_sub(wall_to_monotonic, *delta);

	total_sleep_time = timespec_add(total_sleep_time, *delta);