ACPI / video: Fix initial level validity test

When testing if the firmware's initial value is valid, we should use
the corrected level value instead of the raw value returned from
firmware.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 38c3a28d6392..bf521b36c2f9 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -856,7 +856,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
                  * or an index). Set the backlight to max_level in this case.
                  */
                 for (i = 2; i < br->count; i++)
-                        if (level_old == br->levels[i])
+                        if (level == br->levels[i])
                                 break;
                 if (i == br->count)
                         level = max_level;