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>
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index a59d13d..317ff04 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1218,10 +1218,11 @@
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,