diff options
| author | Johan Hovold <johan@kernel.org> | 2015-05-04 17:10:27 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2015-05-12 10:46:15 +0200 |
| commit | fab28b89a1c418382638d3837739faad9111fa8e (patch) | |
| tree | 6fdc908f0b86bf2fe7f8a2e86a621250743c240d /drivers/gpio/gpiolib.c | |
| parent | 8becdc18c3e1f855cae5af266f6a1f5ce5af24fb (diff) | |
| download | lwn-fab28b89a1c418382638d3837739faad9111fa8e.tar.gz lwn-fab28b89a1c418382638d3837739faad9111fa8e.zip | |
gpio: clean up gpiochip_remove
Clean up gpiochip_remove somewhat and only output warning about removing
chip with GPIOs requested once.
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 59eaa23767d8..5a5c208d31c7 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -325,8 +325,10 @@ static void gpiochip_free_hogs(struct gpio_chip *chip); */ void gpiochip_remove(struct gpio_chip *chip) { + struct gpio_desc *desc; unsigned long flags; unsigned id; + bool requested = false; gpiochip_unexport(chip); @@ -339,15 +341,17 @@ void gpiochip_remove(struct gpio_chip *chip) spin_lock_irqsave(&gpio_lock, flags); for (id = 0; id < chip->ngpio; id++) { - if (test_bit(FLAG_REQUESTED, &chip->desc[id].flags)) - dev_crit(chip->dev, "REMOVING GPIOCHIP WITH GPIOS STILL REQUESTED\n"); + desc = &chip->desc[id]; + desc->chip = NULL; + if (test_bit(FLAG_REQUESTED, &desc->flags)) + requested = true; } - for (id = 0; id < chip->ngpio; id++) - chip->desc[id].chip = NULL; - list_del(&chip->list); spin_unlock_irqrestore(&gpio_lock, flags); + if (requested) + dev_crit(chip->dev, "REMOVING GPIOCHIP WITH GPIOS STILL REQUESTED\n"); + kfree(chip->desc); chip->desc = NULL; } |