diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c
index 2d59038dec43512e40ca46f4a0989c3b1253e0af..86c7eb66bdfb2e18628997319aa047b1aedc1da1 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -462,6 +462,7 @@ void __init mxc_timer_init(unsigned long pbase, int irq, enum imx_gpt_type type)
 	BUG_ON(!imxtm->base);
 
 	imxtm->type = type;
+	imxtm->irq = irq;
 
 	_mxc_timer_init(imxtm);
 }
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 5e097fa9faf7016470b8283931023a15d20ed97d..84190f02b521c9fc77cee6e6a6722000939ee470 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -807,8 +807,8 @@ __mod_timer(struct timer_list *timer, unsigned long expires,
 			spin_unlock(&base->lock);
 			base = new_base;
 			spin_lock(&base->lock);
-			timer->flags &= ~TIMER_BASEMASK;
-			timer->flags |= base->cpu;
+			WRITE_ONCE(timer->flags,
+				   (timer->flags & ~TIMER_BASEMASK) | base->cpu);
 		}
 	}