diff options
Diffstat (limited to 'drivers/gpio/gpiolib-of.c')
| -rw-r--r-- | drivers/gpio/gpiolib-of.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 37a3221d67dc..a68e42dcce0a 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -155,7 +155,7 @@ static struct gpio_desc *of_parse_own_gpio(struct device_node *np, if (ret) return ERR_PTR(ret); - if (tmp > MAX_PHANDLE_ARGS || tmp != chip->of_gpio_n_cells) + if (tmp != chip->of_gpio_n_cells) return ERR_PTR(-EINVAL); gpiospec.np = chip_np; @@ -486,6 +486,9 @@ int of_gpiochip_add(struct gpio_chip *chip) chip->of_xlate = of_gpio_simple_xlate; } + if (chip->of_gpio_n_cells > MAX_PHANDLE_ARGS) + return -EINVAL; + status = of_gpiochip_add_pin_range(chip); if (status) return status; |