[PATCH 2/5] serial: clps711x: fail if mctrl_gpio_init fails

[Uwe Kleine-König]

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 at pengutronix.de>
---
 drivers/tty/serial/clps711x.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c
index 6e11c275f2ab..d5d2dd7c7917 100644
--- a/drivers/tty/serial/clps711x.c
+++ b/drivers/tty/serial/clps711x.c
@@ -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)
-- 
2.1.4