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Commit 65493e3a authored by Alexandre Courbot's avatar Alexandre Courbot Committed by Grant Likely
Browse files

gpiolib: use gpio_chips list in gpiolib_sysfs_init 



Use the small list of GPIO chips instead of parsing the whole GPIO
number space.

Signed-off-by: default avatarAlexandre Courbot <acourbot@nvidia.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
parent 1a989d0f

drivers/gpio/gpiolib.c

+2 −5
Original line number Diff line number Diff line
@@ -974,7 +974,7 @@ static int __init gpiolib_sysfs_init(void) 
{

	int		status;

	unsigned long	flags;

	unsigned	gpio;

	struct gpio_chip *chip;



	status = class_register(&gpio_class);

	if (status < 0)
@@ -987,10 +987,7 @@ static int __init gpiolib_sysfs_init(void) 
	 * registered, and so arch_initcall() can always gpio_export().

	 */

	spin_lock_irqsave(&gpio_lock, flags);

	for (gpio = 0; gpio < ARCH_NR_GPIOS; gpio++) {

		struct gpio_chip	*chip;



		chip = gpio_desc[gpio].chip;

	list_for_each_entry(chip, &gpio_chips, list) {

		if (!chip || chip->exported)

			continue;