[S390] dasd deadlock after state change pending interrupt.

[mv-sheeva.git] / drivers / s390 / block / dasd.c

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 25c1ef6dfd44e796fa9f92e56a36c3d917793831..3cd87f85f7024996ce51f6c7b404f9820972345c 100644 (file)
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -893,7 +893,7 @@ dasd_handle_killed_request(struct ccw_device *cdev, unsigned long intparm)
 
        device = (struct dasd_device *) cqr->device;
        if (device == NULL ||
-           device != dasd_device_from_cdev(cdev) ||
+           device != dasd_device_from_cdev_locked(cdev) ||
            strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) {
                MESSAGE(KERN_DEBUG, "invalid device in request: bus_id %s",
                        cdev->dev.bus_id);
@@ -970,7 +970,7 @@ dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
        /* first of all check for state change pending interrupt */
        mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP;
        if ((irb->scsw.dstat & mask) == mask) {
-               device = dasd_device_from_cdev(cdev);
+               device = dasd_device_from_cdev_locked(cdev);
                if (!IS_ERR(device)) {
                        dasd_handle_state_change_pending(device);
                        dasd_put_device(device);