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pinctrl: apple: return an error if pinmux is missing in the DT

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If of_property_count_u32_elems returned 0, return -EINVAL to indicate
a failure. Previously this would return 0.

Fixes: a0f160ffcb ("pinctrl: add pinctrl/GPIO driver for Apple SoCs")
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211121165642.27883-12-joey.gouly@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Joey Gouly 2021-11-21 16:56:42 +00:00 committed by Linus Walleij
parent 077db34c2b
commit 839930ca1b
1 changed files with 1 additions and 1 deletions
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2
drivers/pinctrl/pinctrl-apple-gpio.c
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@ -119,7 +119,7 @@ static int apple_gpio_dt_node_to_map(struct pinctrl_dev *pctldev,
dev_err(pctl->dev,
"missing or empty pinmux property in node %pOFn.\n",
node);
return ret;
return ret ? ret : -EINVAL;
}
num_pins = ret;