pinctrl: armada-37xx: propagate error from armada_37xx_gpio_get_direction()

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>
Link: https://lore.kernel.org/20250514-pinctrl-a37xx-fixes-v2-6-07e9ac1ab737@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: juhosg

drivers/pinctrl/mvebu/pinctrl-armada-37xx.c

@@ -402,10 +402,13 @@ static int armada_37xx_gpio_get_direction(struct gpio_chip *chip,
 	struct armada_37xx_pinctrl *info = gpiochip_get_data(chip);
 	unsigned int reg = OUTPUT_EN;
 	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;
 
 	if (val & mask)
 		return GPIO_LINE_DIRECTION_OUT;