tcmu: Add a missing unlock on an error path

We added a new error path here but we forgot to drop the lock first
before returning.

Fixes: 0d44374c1aae ("tcmu: fix double se_cmd completion")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index d2b8d5ccb446..bf4fd40dde2b 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -888,6 +888,7 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
         ret = tcmu_setup_cmd_timer(tcmu_cmd);
         if (ret) {
                 tcmu_cmd_free_data(tcmu_cmd, tcmu_cmd->dbi_cnt);
+                mutex_unlock(&udev->cmdr_lock);
                 return TCM_OUT_OF_RESOURCES;
         }
         entry->hdr.cmd_id = tcmu_cmd->cmd_id;