pinctrl: bcm2835: Handle gpiochip_add_pin_range() errors

[ Upstream commit cdf7e616120065007687fe1df0412154f259daec ]

gpiochip_add_pin_range() can fail, so better return its error code than
a hard coded '0'.

Fixes: d2b67744fd99 ("pinctrl: bcm2835: implement hook for missing gpio-ranges")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/98c3b5890bb72415145c9fe4e1d974711edae376.1681681402.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
index 7435173e10f43105078bd07a8a1529359dbd98dd..1489191a213fed7d27fed523ec1fc44bf28d6f5c 100644 (file)
--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
@@ -376,10 +376,8 @@ static int bcm2835_add_pin_ranges_fallback(struct gpio_chip *gc)
        if (!pctldev)
                return 0;
 
-       gpiochip_add_pin_range(gc, pinctrl_dev_get_devname(pctldev), 0, 0,
-                              gc->ngpio);
-
-       return 0;
+       return gpiochip_add_pin_range(gc, pinctrl_dev_get_devname(pctldev), 0, 0,
+                                     gc->ngpio);
 }
 
 static const struct gpio_chip bcm2835_gpio_chip = {