Unduplicate the offset check by simply calling gpiochip_get_desc() and
checking its return value.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
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));