diff options
| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-03-26 17:21:14 +0200 |
|---|---|---|
| committer |   Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2019-04-04 09:34:13 +0200 |
| commit | 1d7765ba15aca68f3bc52f59434c1c34855bbb54 (patch) | |
| tree | d6fb55519c2e79a46e08db62cb2c6fdefbc6a72d /drivers/gpio | |
| parent | gpiolib: acpi: Fix references in kernel doc and amend (diff) | |
| download | linux-dev-1d7765ba15aca68f3bc52f59434c1c34855bbb54.tar.xz linux-dev-1d7765ba15aca68f3bc52f59434c1c34855bbb54.zip | |
gpiolib: Don't WARN on gpiod_put() for optional GPIO
In case of debug and optional GPIO requested, the gpiod_put() is not aware of
and will WARN, which is not the case.
Make gpiod_put() NULL-aware to keep silent for optional GPIOs.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/gpio')
| -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 144af0733581..36445e24ee89 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -4616,7 +4616,8 @@ EXPORT_SYMBOL_GPL(gpiod_get_array_optional); */ void gpiod_put(struct gpio_desc *desc) { - gpiod_free(desc); + if (desc) + gpiod_free(desc); } EXPORT_SYMBOL_GPL(gpiod_put); |