driver core: Prevent reference to freed memory on error path

priv is drv->p. So only free drv->p after we've finished using priv.

Found using a static code analysis tool

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 63c143e54a5..c0c5a43d9fb 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -703,9 +703,9 @@ int bus_add_driver(struct device_driver *drv)
         return 0;
 
 out_unregister:
+        kobject_put(&priv->kobj);
         kfree(drv->p);
         drv->p = NULL;
-        kobject_put(&priv->kobj);
 out_put_bus:
         bus_put(bus);
         return error;