diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index eb75d12e83b7..623fcd9b547a 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -99,7 +99,7 @@ int gpiochip_add(struct gpio_chip *chip) * dynamic allocation. We don't currently support that. */ - if (chip->base < 0 || (chip->base + chip->ngpio) >= ARCH_NR_GPIOS) { + if (chip->base < 0 || !gpio_is_valid(chip->base + chip->ngpio)) { status = -EINVAL; goto fail; } @@ -174,7 +174,7 @@ int gpio_request(unsigned gpio, const char *label) spin_lock_irqsave(&gpio_lock, flags); - if (gpio >= ARCH_NR_GPIOS) + if (!gpio_is_valid(gpio)) goto done; desc = &gpio_desc[gpio]; if (desc->chip == NULL) @@ -209,7 +209,7 @@ void gpio_free(unsigned gpio) unsigned long flags; struct gpio_desc *desc; - if (gpio >= ARCH_NR_GPIOS) { + if (!gpio_is_valid(gpio)) { WARN_ON(extra_checks); return; } @@ -245,7 +245,7 @@ const char *gpiochip_is_requested(struct gpio_chip *chip, unsigned offset) { unsigned gpio = chip->base + offset; - if (gpio >= ARCH_NR_GPIOS || gpio_desc[gpio].chip != chip) + if (!gpio_is_valid(gpio) || gpio_desc[gpio].chip != chip) return NULL; if (test_bit(FLAG_REQUESTED, &gpio_desc[gpio].flags) == 0) return NULL; @@ -276,7 +276,7 @@ int gpio_direction_input(unsigned gpio) spin_lock_irqsave(&gpio_lock, flags); - if (gpio >= ARCH_NR_GPIOS) + if (!gpio_is_valid(gpio)) goto fail; chip = desc->chip; if (!chip || !chip->get || !chip->direction_input) @@ -314,7 +314,7 @@ int gpio_direction_output(unsigned gpio, int value) spin_lock_irqsave(&gpio_lock, flags); - if (gpio >= ARCH_NR_GPIOS) + if (!gpio_is_valid(gpio)) goto fail; chip = desc->chip; if (!chip || !chip->set || !chip->direction_output) @@ -531,7 +531,7 @@ static int gpiolib_show(struct seq_file *s, void *unused) /* REVISIT this isn't locked against gpio_chip removal ... */ - for (gpio = 0; gpio < ARCH_NR_GPIOS; gpio++) { + for (gpio = 0; gpio_is_valid(gpio); gpio++) { if (chip == gpio_desc[gpio].chip) continue; chip = gpio_desc[gpio].chip; |