Spurious timer interrupt is noticed in mtk timer and cause kernel crash. In mtk_timer_interrupt(), only run event_handler if it is not NULL. Signed-off-by: Yingjoe Chen <yingjoe.chen@xxxxxxxxxxxx> --- drivers/clocksource/mtk_timer.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/clocksource/mtk_timer.c b/drivers/clocksource/mtk_timer.c index 68ab423..85e0ab5 100644 --- a/drivers/clocksource/mtk_timer.c +++ b/drivers/clocksource/mtk_timer.c @@ -143,7 +143,8 @@ static irqreturn_t mtk_timer_interrupt(int irq, void *dev_id) /* Acknowledge timer0 irq */ writel(GPT_IRQ_ACK(GPT_CLK_EVT), evt->gpt_base + GPT_IRQ_ACK_REG); - evt->dev.event_handler(&evt->dev); + if (evt->dev.event_handler) + evt->dev.event_handler(&evt->dev); return IRQ_HANDLED; } -- 1.8.1.1.dirty -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
