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serial: clps711x: fail if mctrl_gpio_init fails

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mctrl_gpio_init is fully aware of being optional. If it returns an error
code this indicates a real error that must not be ignored.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Uwe Kleine-König 2015-02-12 15:24:39 +01:00 committed by Greg Kroah-Hartman
parent 722ccf416a
commit f059a455fc
1 changed files with 2 additions and 0 deletions
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2
drivers/tty/serial/clps711x.c
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@ -501,6 +501,8 @@ static int uart_clps711x_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, s);
s->gpios = mctrl_gpio_init(&pdev->dev, 0);
if (IS_ERR(s->gpios))
return PTR_ERR(s->gpios);
ret = uart_add_one_port(&clps711x_uart, &s->port);
if (ret)