diff options
| author | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2020-02-19 10:47:02 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-02-21 15:51:32 +0100 |
| commit | 1739a2d852265977836152be43073ead5c64d1ea (patch) | |
| tree | 2208c05ae64e1459a8b87d5d99ee9867e91572ce /drivers/gpio | |
| parent | 023892ec80f0efcffe22045e92bb89f3f1480f2d (diff) | |
| download | linux-1739a2d852265977836152be43073ead5c64d1ea.tar.bz2 | |
gpiolib: use gpiochip_get_desc() where applicable
Whenever retrieving a descriptor from a gpiochip: use the provided
helper which checks for errors.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20200219094702.6463-1-brgl@bgdev.pl
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index f73077f26eff..611709fd560f 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -3143,7 +3143,9 @@ const char *gpiochip_is_requested(struct gpio_chip *chip, unsigned offset) if (offset >= chip->ngpio) return NULL; - desc = &chip->gpiodev->descs[offset]; + desc = gpiochip_get_desc(chip, offset); + if (IS_ERR(desc)) + return NULL; if (test_bit(FLAG_REQUESTED, &desc->flags) == 0) return NULL; |