diff options
| author | Julian Wiedmann <jwi@linux.ibm.com> | 2021-06-01 08:20:09 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2021-07-27 09:39:18 +0200 |
| commit | d1ea9b58c8fbdc280f06b48469b4d056bd69f142 (patch) | |
| tree | 0a865cbb4a091b27c3fad13187f4bf0a729860cd /drivers/s390/cio | |
| parent | s390/qdio: improve roll-back after error on ESTABLISH ccw (diff) | |
| download | linux-d1ea9b58c8fbdc280f06b48469b4d056bd69f142.tar.xz linux-d1ea9b58c8fbdc280f06b48469b4d056bd69f142.zip | |
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 <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers/s390/cio')
| -rw-r--r-- | drivers/s390/cio/qdio_main.c | 13 |
1 files changed, 8 insertions, 5 deletions
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; } /** |