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>

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 6df8c62..b9895fe 100644 (file)
--- 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);