serial: 8250: 8250_core: Fix missing unlock on error in serial8250_register_8250_port() (b7a8f766) · Commits · 戴 / test

Add the missing unlock before return from function serial8250_register_8250_port() in the error handling case. Signed-off-by:

drivers/tty/serial/8250/8250_core.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -1026,8 +1026,10 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
		if (!has_acpi_companion(uart->port.dev)) {
		gpios = mctrl_gpio_init(&uart->port, 0);
		if (IS_ERR(gpios)) {
		if (PTR_ERR(gpios) != -ENOSYS)
		return PTR_ERR(gpios);
		if (PTR_ERR(gpios) != -ENOSYS) {
		ret = PTR_ERR(gpios);
		goto out_unlock;
		}
		} else {
		uart->gpios = gpios;
		}
		@@ -1099,6 +1101,7 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
		}
		}

		out_unlock:
		mutex_unlock(&serial_mutex);

		return ret;