From fab28b89a1c418382638d3837739faad9111fa8e Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 4 May 2015 17:10:27 +0200 Subject: [PATCH] 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 Reviewed-by: Alexandre Courbot Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib.c | 14 +++++++++----- 1 file 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; } -- 2.39.5