r8152: fix the wrong return value

The return value should be the boolean value, not the error code.

Signed-off-by: Hayes Wang <[e-mail]>
Spotted-by: Dan Carpenter <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/usb/r8152.c

···
 			ops->unload		= rtl8153_unload;
 			break;
 		default:
-			ret = -EFAULT;
+			ret = false;
 			break;
 		}
 		break;