diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2012-11-20 17:56:25 +0400 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2012-11-21 11:55:11 +0400 |
| commit | 8f23ca1a73a096f21e6618d8e23df613daa5e532 (patch) | |
| tree | 3a5395021e8468b50e973a3978b497241b94e7de /drivers/gpio/gpiolib.c | |
| parent | dfa9751548444caadda2d6de1a2b67e05b34c2aa (diff) | |
| download | linux-8f23ca1a73a096f21e6618d8e23df613daa5e532.tar.xz | |
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>
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index a59d13d746c5..317ff0440e29 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -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, |