r8152: add error handling in rtl8152_driver_init

rtl8152_driver_init() is missing the error handling.
When rtl8152_driver registration fails, rtl8152_cfgselector_driver
should be deregistered.

Fixes: ec51fbd ("r8152: add USB device driver for config selection")
Cc: [email protected]
Signed-off-by: Yi Cong <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
[[email protected]: clarified the commit message]
Signed-off-by: Paolo Abeni <[email protected]>

Author: Yi Cong

drivers/net/usb/r8152.c

@@ -10122,7 +10122,12 @@ static int __init rtl8152_driver_init(void)
 	ret = usb_register_device_driver(&rtl8152_cfgselector_driver, THIS_MODULE);
 	if (ret)
 		return ret;
-	return usb_register(&rtl8152_driver);
+
+	ret = usb_register(&rtl8152_driver);
+	if (ret)
+		usb_deregister_device_driver(&rtl8152_cfgselector_driver);
+
+	return ret;
 }
 
 static void __exit rtl8152_driver_exit(void)