From d1ea9b58c8fbdc280f06b48469b4d056bd69f142 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Tue, 1 Jun 2021 08:20:09 +0200 Subject: s390/qdio: propagate error when cancelling a ccw fails If qdio_cancel_ccw() times out (or is interrupted) before the interrupt for the {halt,clear} action arrives, report this back to the caller as an error. Signed-off-by: Julian Wiedmann Reviewed-by: Benjamin Block Signed-off-by: Heiko Carstens --- drivers/s390/cio/qdio_main.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'drivers/s390/cio') diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 167653037b52..99f34bdb267b 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -893,6 +893,7 @@ static void qdio_shutdown_queues(struct qdio_irq *irq_ptr) static int qdio_cancel_ccw(struct qdio_irq *irq, int how) { struct ccw_device *cdev = irq->cdev; + long timeout; int rc; spin_lock_irq(get_ccwdev_lock(cdev)); @@ -909,12 +910,14 @@ static int qdio_cancel_ccw(struct qdio_irq *irq, int how) return rc; } - wait_event_interruptible_timeout(cdev->private->wait_q, - irq->state == QDIO_IRQ_STATE_INACTIVE || - irq->state == QDIO_IRQ_STATE_ERR, - 10 * HZ); + timeout = wait_event_interruptible_timeout(cdev->private->wait_q, + irq->state == QDIO_IRQ_STATE_INACTIVE || + irq->state == QDIO_IRQ_STATE_ERR, + 10 * HZ); + if (timeout <= 0) + rc = (timeout == -ERESTARTSYS) ? -EINTR : -ETIME; - return 0; + return rc; } /** -- cgit v1.2.3