[S390] cio: Introduce ccw_bus_type.shutdown.

Introduce a shutdown method for the ccw bus that calls the driver
specific shutdown method in struct ccw_driver.
Switch zfcp to the new ccw_driver shutdown method.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 3943a4fde22a..7fb271c60c27 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1433,12 +1433,22 @@ ccw_device_remove (struct device *dev)
         return 0;
 }
 
+static void ccw_device_shutdown(struct device *dev)
+{
+        struct ccw_device *cdev;
+
+        cdev = to_ccwdev(dev);
+        if (cdev->drv && cdev->drv->shutdown)
+                cdev->drv->shutdown(cdev);
+}
+
 struct bus_type ccw_bus_type = {
         .name   = "ccw",
         .match  = ccw_bus_match,
         .uevent = ccw_uevent,
         .probe  = ccw_device_probe,
         .remove = ccw_device_remove,
+        .shutdown = ccw_device_shutdown,
 };
 
 /**