vsock: fix missing cleanup when misc_register failed

reset transport and unlock if misc_register failed.

Signed-off-by: Gao feng <omarapazanadi@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index df5fc6b..00e8a34 100644 (file)
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1948,13 +1948,13 @@ int __vsock_core_init(const struct vsock_transport *t, struct module *owner)
        err = misc_register(&vsock_device);
        if (err) {
                pr_err("Failed to register misc device\n");
-               return -ENOENT;
+               goto err_reset_transport;
        }
 
        err = proto_register(&vsock_proto, 1);  /* we want our slab */
        if (err) {
                pr_err("Cannot register vsock protocol\n");
-               goto err_misc_deregister;
+               goto err_deregister_misc;
        }
 
        err = sock_register(&vsock_family_ops);
@@ -1969,8 +1969,9 @@ int __vsock_core_init(const struct vsock_transport *t, struct module *owner)
 
 err_unregister_proto:
        proto_unregister(&vsock_proto);
-err_misc_deregister:
+err_deregister_misc:
        misc_deregister(&vsock_device);
+err_reset_transport:
        transport = NULL;
 err_busy:
        mutex_unlock(&vsock_register_mutex);