rbd: drop extra header_rwsem init

In commit c666601a there was inadvertently added an extra
initialization of rbd_dev->header_rwsem.  This gets rid of the
duplicate.

Reported-by: Guangliang Zhao <gzhao@suse.com>
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 6df8c62c40f5..b9895feda5ee 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -2458,8 +2458,6 @@ static ssize_t rbd_add(struct bus_type *bus,
         INIT_LIST_HEAD(&rbd_dev->snaps);
         init_rwsem(&rbd_dev->header_rwsem);
 
-        init_rwsem(&rbd_dev->header_rwsem);
-
         /* generate unique id: find highest unique id, add one */
         rbd_id_get(rbd_dev);