rbd: don't NULL out ->obj_request in rbd_img_obj_parent_read_full()

If rbd_img_request_submit() fails, parent_request->obj_request is
NULLed out, triggering an assert in rbd_obj_request_put():

  rbd_img_request_put(parent_request)
    rbd_parent_request_destroy
      rbd_obj_request_put(NULL)

Just remove it -- parent_request->obj_request will be put in
rbd_parent_request_destroy().

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 7646a2d3119c12de78bc184bba704b09fc11e871..4a886d8c4a3c46305216a26262229fd0173cef0d 100644 (file)
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -2682,8 +2682,6 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request)
 
        parent_request->copyup_pages = NULL;
        parent_request->copyup_page_count = 0;
-       parent_request->obj_request = NULL;
-       rbd_obj_request_put(obj_request);
 out_err:
        if (pages)
                ceph_release_page_vector(pages, page_count);