serial: stm32: fix error handling in probe (ada80043) · Commits · 戴 / test

drivers/tty/serial/stm32-usart.c

+9 −2

Original line number	Diff line number	Diff line
		@@ -678,8 +678,10 @@ static int stm32_init_port(struct stm32_port *stm32port,
		return ret;

		stm32port->port.uartclk = clk_get_rate(stm32port->clk);
		if (!stm32port->port.uartclk)
		if (!stm32port->port.uartclk) {
		clk_disable_unprepare(stm32port->clk);
		ret = -EINVAL;
		}

		return ret;
		}
		@@ -865,7 +867,7 @@ static int stm32_serial_probe(struct platform_device *pdev)

		ret = uart_add_one_port(&stm32_usart_driver, &stm32port->port);
		if (ret)
		return ret;
		goto err_uninit;

		ret = stm32_of_dma_rx_probe(stm32port, pdev);
		if (ret)
		@@ -878,6 +880,11 @@ static int stm32_serial_probe(struct platform_device *pdev)
		platform_set_drvdata(pdev, &stm32port->port);

		return 0;

		err_uninit:
		clk_disable_unprepare(stm32port->clk);

		return ret;
		}

		static int stm32_serial_remove(struct platform_device *pdev)