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| author | Linus Walleij <linus.walleij@linaro.org> | 2016-02-11 10:28:44 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-02-11 20:29:46 +0100 |
| commit | 33a68e86fd7741f782c71a0daa9111b352e94445 (patch) | |
| tree | 96e6ee9894a0513d98e43300dd17bec0a45e36a4 /drivers/gpio/gpio-viperboard.c | |
| parent | fdeb8e1547cb9dd39d5d7223b33f3565cf86c28e (diff) | |
| download | op-kernel-dev-33a68e86fd7741f782c71a0daa9111b352e94445.zip op-kernel-dev-33a68e86fd7741f782c71a0daa9111b352e94445.tar.gz | |
gpio: reference count the gpio device for each desc
Every time a descriptor is retrieved from the gpiolib, we issue
module_get() to reference count the module supplying the GPIOs.
We also need to call device_get() and device_put() as we also
reference the backing gpio_device when doing this.
Since the sysfs GPIO interface is using gpiod_get() this will
also reference count the sysfs requests until all GPIOs are
unexported.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-viperboard.c')
0 files changed, 0 insertions, 0 deletions
