driver core: properly get driver in device_release_driver

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index b0088b0..3c503e1 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -296,9 +296,8 @@
 {
 	struct device_driver * drv;
 
-	drv = dev->driver;
+	drv = get_driver(dev->driver);
 	if (drv) {
-		get_driver(drv);
 		driver_sysfs_remove(dev);
 		sysfs_remove_link(&dev->kobj, "driver");
 		klist_remove(&dev->knode_driver);