[PATCH v2 4/7] pinctrl: armada-37xx: propagate error from armada_37xx_gpio_get()

[Gabor Juhos <j4g8y7@gmail.com>]

The regmap_read() function can fail, so propagate its error up to
the stack instead of silently ignoring that.

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
---
Changes in v2:
  - remove 'stable' and 'Fixes' tags
  - add 'Reviewed-by' tag from Andrew
  - reorder 'Signed-off-by' tags (result of 'b4 trailers -u')
---
 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index 8d93d36af63ab9496376219454214c05db30971f..2e88a0399d1a205064b58890db6477e2202bf311 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -440,11 +440,14 @@ static int armada_37xx_gpio_get(struct gpio_chip *chip, unsigned int offset)
 	struct armada_37xx_pinctrl *info = gpiochip_get_data(chip);
 	unsigned int reg = INPUT_VAL;
 	unsigned int val, mask;
+	int ret;
 
 	armada_37xx_update_reg(&reg, &offset);
 	mask = BIT(offset);
 
-	regmap_read(info->regmap, reg, &val);
+	ret = regmap_read(info->regmap, reg, &val);
+	if (ret)
+		return ret;
 
 	return (val & mask) != 0;
 }

-- 
2.49.0