diff options
| -rw-r--r-- | drivers/gpio/gpiolib.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index a11c4ee3e47f..5eef7ddddd0e 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1175,10 +1175,11 @@ static long gpio_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) if (copy_from_user(&lineinfo, ip, sizeof(lineinfo))) return -EFAULT; - if (lineinfo.line_offset >= gdev->ngpio) - return -EINVAL; - desc = &gdev->descs[lineinfo.line_offset]; + desc = gpiochip_get_desc(chip, lineinfo.line_offset); + if (IS_ERR(desc)) + return PTR_ERR(desc); + if (desc->name) { strncpy(lineinfo.name, desc->name, sizeof(lineinfo.name)); |