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-rw-r--r--drivers/block/rnbd/rnbd-srv.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/block/rnbd/rnbd-srv.c b/drivers/block/rnbd/rnbd-srv.c
index a4fd9f167c18..1549a6361630 100644
--- a/drivers/block/rnbd/rnbd-srv.c
+++ b/drivers/block/rnbd/rnbd-srv.c
@@ -334,7 +334,9 @@ void rnbd_srv_sess_dev_force_close(struct rnbd_srv_sess_dev *sess_dev)
struct rnbd_srv_session *sess = sess_dev->sess;
sess_dev->keep_id = true;
- mutex_lock(&sess->lock);
+ /* It is already started to close by client's close message. */
+ if (!mutex_trylock(&sess->lock))
+ return;
rnbd_srv_destroy_dev_session_sysfs(sess_dev);
mutex_unlock(&sess->lock);
}