vfio: don't dereference after kfree...
authorAl Viro <viro@zeniv.linux.org.uk>
Fri, 17 Aug 2012 23:49:09 +0000 (19:49 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Wed, 22 Aug 2012 14:23:04 +0000 (10:23 -0400)
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
drivers/vfio/vfio.c

index 9591e2b..0b025d5 100644 (file)
@@ -416,8 +416,9 @@ static void vfio_device_release(struct kref *kref)
 /* Device reference always implies a group reference */
 static void vfio_device_put(struct vfio_device *device)
 {
+       struct vfio_group *group = device->group;
        kref_put(&device->kref, vfio_device_release);
-       vfio_group_put(device->group);
+       vfio_group_put(group);
 }
 
 static void vfio_device_get(struct vfio_device *device)