Commit bfae03fe authored Apr 03, 2020 by Chris Wilson

drm/i915: Avoid setting timer->expires to 0

We use timer->expires == 0 to detect if a timer had been cancelled, but
it's a valid expiration we could set. Just skip using 0 and set the
expiry for the next jiffie.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200403073657.13427-1-chris@chris-wilson.co.uk

parent 43acd651

drivers/gpu/drm/i915/i915_utils.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -101,5 +101,6 @@ void set_timer_ms(struct timer_list *t, unsigned long timeout)
		*/
		barrier();

		mod_timer(t, jiffies + timeout);
		/* Keep t->expires = 0 reserved to indicate a canceled timer. */
		mod_timer(t, jiffies + timeout ?: 1);
		}