driver: tty: add missing unregister in err case
when platform_driver_register broken, we should unregister ucc_uart_driver
Signed-off-by: Libo chen <libo.chen@huawei.com>
Acked-by: Timur Tabi <timur@tabi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index c8ab8e4..8831748 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -1517,9 +1517,11 @@
}
ret = platform_driver_register(&ucc_uart_of_driver);
- if (ret)
+ if (ret) {
printk(KERN_ERR
"ucc-uart: could not register platform driver\n");
+ uart_unregister_driver(&ucc_uart_driver);
+ }
return ret;
}