Re: [PATCH 1/2] ACPI / video: Fix initial level validity test

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On 11/07/2013 06:03 AM, Rafael J. Wysocki wrote:
> On Wednesday, November 06, 2013 09:03:15 AM Aaron Lu wrote:
>> 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@xxxxxxxxx>
>> Cc: Danny Baumann <dannybaumann@xxxxxx>
>> Cc: stable <stable@xxxxxxxxxx>
> 
> Any pointers to bug reports, BZ entries, etc?

This patch doesn't solve any bugs, I found the problem while preparing
patch 2/2. Now I remembered some stable rule that patch that solves a
potential bug isn't acceptable, so the stable tag should be dropped.

Thanks,
Aaron

> 
>> ---
>>  drivers/acpi/video.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> 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;
>>

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