From: Wu Bo <wub...@huawei.com>
[ Upstream commit 4d8e28ff3106b093d98bfd2eceb9b430c70a8758 ]
If the ceph_mdsc_open_export_target_session() return fails, it will
do a "goto retry", but the session mutex has already been unlocked.
Re-lock the mutex in that case to ensure that we don't unlock it
twice.
Signed-off-by: Wu Bo <wub...@huawei.com>
Reviewed-by: "Yan, Zheng" <z...@redhat.com>
Signed-off-by: Ilya Dryomov <idryo...@gmail.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
fs/ceph/caps.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 703945cce0e5..2d602c2b0ff6 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -3693,6 +3693,7 @@ retry:
WARN_ON(1);
tsession = NULL;
target = -1;
+ mutex_lock(&session->s_mutex);
}
goto retry;
--
2.25.1
