[S390] cio: make wait_events interruptible
Make the potentially long blocking wait_event's used by the cio
settle mechanism interruptible.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 9c9ea45..6aa2f06 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -158,11 +158,16 @@
return 0;
}
-static void io_subchannel_settle(void)
+static int io_subchannel_settle(void)
{
- wait_event(ccw_device_init_wq,
- atomic_read(&ccw_device_init_count) == 0);
+ int ret;
+
+ ret = wait_event_interruptible(ccw_device_init_wq,
+ atomic_read(&ccw_device_init_count) == 0);
+ if (ret)
+ return -EINTR;
flush_workqueue(cio_work_q);
+ return 0;
}
static struct css_driver io_subchannel_driver = {
