[S390] dasd: ignore unsolicited interrupts for DIAG

[deliverable/linux.git] / drivers / s390 / cio / device_fsm.c

diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 4395c01a9daca092d1f151f8cc31727f91562b2e..a845695ac314dc5dd7e1c3733bacd35216a88235 100644 (file)
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -174,7 +174,10 @@ ccw_device_cancel_halt_clear(struct ccw_device *cdev)
                ret = cio_clear (sch);
                return (ret == 0) ? -EBUSY : ret;
        }
-       panic("Can't stop i/o on subchannel.\n");
+       /* Function was unsuccessful */
+       CIO_MSG_EVENT(0, "0.%x.%04x: could not stop I/O\n",
+                     cdev->private->dev_id.ssid, cdev->private->dev_id.devno);
+       return -EIO;
 }
 
 void ccw_device_update_sense_data(struct ccw_device *cdev)
@@ -766,13 +769,14 @@ ccw_device_online_timeout(struct ccw_device *cdev, enum dev_event dev_event)
        int ret;
 
        ccw_device_set_timeout(cdev, 0);
+       cdev->private->iretry = 255;
        ret = ccw_device_cancel_halt_clear(cdev);
        if (ret == -EBUSY) {
                ccw_device_set_timeout(cdev, 3*HZ);
                cdev->private->state = DEV_STATE_TIMEOUT_KILL;
                return;
        }
-       if (ret == -ENODEV)
+       if (ret)
                dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
        else if (cdev->handler)
                cdev->handler(cdev, cdev->private->intparm,
@@ -869,6 +873,7 @@ void ccw_device_kill_io(struct ccw_device *cdev)
 {
        int ret;
 
+       cdev->private->iretry = 255;
        ret = ccw_device_cancel_halt_clear(cdev);
        if (ret == -EBUSY) {
                ccw_device_set_timeout(cdev, 3*HZ);