Log mei_irq_write_handler() errors to prevent silent IRQ handling failures.
Fixes: 962ff7bcec24 ("mei: replace callback structures used as list head by list_head") Cc: stable@vger.kernel.org # 4.11+ Signed-off-by: Wentao Liang vulab@iscas.ac.cn --- drivers/misc/mei/hw-me.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index d11a0740b47c..5df42a64b4db 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -1415,6 +1415,8 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id) if (dev->pg_event != MEI_PG_EVENT_WAIT && dev->pg_event != MEI_PG_EVENT_RECEIVED) { rets = mei_irq_write_handler(dev, &cmpl_list); + if (rets) + dev_err(dev->dev, "mei_irq_write_handler ret = %d.\n", rets); dev->hbuf_is_ready = mei_hbuf_is_ready(dev); }