diff options
| -rw-r--r-- | drivers/acpi/toshiba_acpi.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c index 88aeccbafaaf..d9b651ffcdc0 100644 --- a/drivers/acpi/toshiba_acpi.c +++ b/drivers/acpi/toshiba_acpi.c @@ -321,13 +321,16 @@ static int set_lcd_status(struct backlight_device *bd) static unsigned long write_lcd(const char *buffer, unsigned long count) { int value; - int ret = count; + int ret; if (sscanf(buffer, " brightness : %i", &value) == 1 && - value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) + value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) { ret = set_lcd(value); - else + if (ret == 0) + ret = count; + } else { ret = -EINVAL; + } return ret; } |