We don't need to check the gdev pointer in struct gpio_desc - it's
always assigned and never cleared. It's also pointless to check
gdev->chip before we actually serialize access to it.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
*/
struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc)
{
- if (!desc || !desc->gdev)
+ if (!desc)
return NULL;
return desc->gdev->chip;
}
* requires this function to not return zero on an invalid descriptor
* but rather a negative error number.
*/
- if (!desc || IS_ERR(desc) || !desc->gdev || !desc->gdev->chip)
+ if (!desc || IS_ERR(desc))
return -EINVAL;
gc = desc->gdev->chip;