nvme-loop: fix module_init (theoretical) error path

if nvmf_register_transport happend to fail, we
need to nvmet_unregister_transport as well.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index a74cd11..c95c138 100644 (file)
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -745,7 +745,12 @@ static int __init nvme_loop_init_module(void)
        ret = nvmet_register_transport(&nvme_loop_ops);
        if (ret)
                return ret;
-       return nvmf_register_transport(&nvme_loop_transport);
+
+       ret = nvmf_register_transport(&nvme_loop_transport);
+       if (ret)
+               nvmet_unregister_transport(&nvme_loop_ops);
+
+       return ret;
 }
 
 static void __exit nvme_loop_cleanup_module(void)