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Commit 8f23ca1a authored Nov 20, 2012 by Linus Walleij

gpiolib: return any error code from range creation



If we try to create a range for a certain GPIO chip and the
target pin controller is not yet available it may return
a probe deferral error code, so handle this all the way
our by checking the error code.

Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

parent dfa97515

drivers/gpio/gpiolib.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1218,10 +1218,11 @@ int gpiochip_add_pin_range(struct gpio_chip chip, const char pinctl_name,
		pin_range->range.npins = npins;
		pin_range->pctldev = pinctrl_find_and_add_gpio_range(pinctl_name,
		&pin_range->range);
		if (!pin_range->pctldev) {
		if (IS_ERR(pin_range->pctldev)) {
		pr_err("%s: GPIO chip: could not create pin range\n",
		chip->label);
		kfree(pin_range);
		return PTR_ERR(pin_range->pctldev);
		}
		pr_debug("%s: GPIO chip: created GPIO range %d->%d ==> PIN %d->%d\n",
		chip->label, offset, offset + npins - 1,