diff options
Diffstat (limited to 'drivers/gpio/gpiodebug.c')
| -rw-r--r-- | drivers/gpio/gpiodebug.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpio/gpiodebug.c b/drivers/gpio/gpiodebug.c index cc5159b50bb..b83e1fcad43 100644 --- a/drivers/gpio/gpiodebug.c +++ b/drivers/gpio/gpiodebug.c @@ -229,9 +229,9 @@ static ssize_t gpio_conf_write(struct file *filp, const char __user *ubuf, ssize_t ret = 0; struct gpiodebug_data *data = filp->private_data; struct gpio_debug *debug = data->debug; - int i, gpio = data->gpio; + int i, gpio = data->gpio, err; char *buf, *start; - unsigned int value; + unsigned long int value; ret = cnt; @@ -254,7 +254,11 @@ static ssize_t gpio_conf_write(struct file *filp, const char __user *ubuf, for (i = cnt - 1; i > 0 && isspace(buf[i]); i--) buf[i] = 0; - kstrtoul(start, 16, &value); + err = kstrtoul(start, 16, &value); + if (err) { + pr_warn("kstrtoul() failed with errno: %d\n", err); + return err; + } if (debug->ops->set_conf_reg) debug->ops->set_conf_reg(debug, gpio, value); |