diff options
Diffstat (limited to 'drivers/gpio/gpio-sim.c')
| -rw-r--r-- | drivers/gpio/gpio-sim.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c index 1020c2feb249..60514bc5454f 100644 --- a/drivers/gpio/gpio-sim.c +++ b/drivers/gpio/gpio-sim.c @@ -31,6 +31,7 @@ #include "gpiolib.h" +#define GPIO_SIM_NGPIO_MAX 1024 #define GPIO_SIM_PROP_MAX 4 /* Max 3 properties + sentinel. */ #define GPIO_SIM_NUM_ATTRS 3 /* value, pull and sentinel */ @@ -371,6 +372,9 @@ static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev) if (ret) return ret; + if (num_lines > GPIO_SIM_NGPIO_MAX) + return -ERANGE; + ret = fwnode_property_read_string(swnode, "gpio-sim,label", &label); if (ret) { label = devm_kasprintf(dev, GFP_KERNEL, "%s-%s", |