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Commit 11f1ad3a authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Greg Kroah-Hartman
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serial/efm32-uart: don't use pdev->id to determine the port's line 



pdev->id is not a valid choice for device-tree probed devices. So use
the (properly determined) line from efm32_uart_probe consistenly

Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 574de559

drivers/tty/serial/efm32-uart.c

+10 −7
Original line number Diff line number Diff line
@@ -698,6 +698,7 @@ static int efm32_uart_probe(struct platform_device *pdev) 
{

	struct efm32_uart_port *efm_port;

	struct resource *res;

	unsigned int line;

	int ret;



	efm_port = kzalloc(sizeof(*efm_port), GFP_KERNEL);
@@ -752,16 +753,17 @@ static int efm32_uart_probe(struct platform_device *pdev) 
			efm_port->pdata = *pdata;

	}



	if (efm_port->port.line >= 0 &&

			efm_port->port.line < ARRAY_SIZE(efm32_uart_ports))

		efm32_uart_ports[efm_port->port.line] = efm_port;

	line = efm_port->port.line;



	if (line >= 0 && line < ARRAY_SIZE(efm32_uart_ports))

		efm32_uart_ports[line] = efm_port;



	ret = uart_add_one_port(&efm32_uart_reg, &efm_port->port);

	if (ret) {

		dev_dbg(&pdev->dev, "failed to add port: %d\n", ret);



		if (pdev->id >= 0 && pdev->id < ARRAY_SIZE(efm32_uart_ports))

			efm32_uart_ports[pdev->id] = NULL;

		if (line >= 0 && line < ARRAY_SIZE(efm32_uart_ports))

			efm32_uart_ports[line] = NULL;

err_get_rxirq:

err_too_small:

err_get_base:
@@ -777,11 +779,12 @@ static int efm32_uart_probe(struct platform_device *pdev) 
static int efm32_uart_remove(struct platform_device *pdev)

{

	struct efm32_uart_port *efm_port = platform_get_drvdata(pdev);

	unsigned int line = efm_port->port.line;



	uart_remove_one_port(&efm32_uart_reg, &efm_port->port);



	if (pdev->id >= 0 && pdev->id < ARRAY_SIZE(efm32_uart_ports))

		efm32_uart_ports[pdev->id] = NULL;

	if (line >= 0 && line < ARRAY_SIZE(efm32_uart_ports))

		efm32_uart_ports[line] = NULL;



	kfree(efm_port);