diff options
| author | Alexandre Courbot <acourbot@nvidia.com> | 2013-02-02 17:29:25 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2013-02-09 10:22:21 +0100 |
| commit | 65493e3ac429623df021e0859d97691f4b42615a (patch) | |
| tree | a4e4568cde79ce00d80c5c1b6f4f74d59d1c2562 /drivers/gpio | |
| parent | gpiolib: link all gpio_chips using a list (diff) | |
| download | linux-65493e3ac429623df021e0859d97691f4b42615a.tar.xz linux-65493e3ac429623df021e0859d97691f4b42615a.zip | |
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: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 453ac77771ca..c1d8f7bdcd8f 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -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; |