Re: [PATCH][next] drm/bridge: sii902x: fix comparision of u32 with less than zero

[Colin Ian King]

On 07/06/2019 10:41, Andrzej Hajda wrote:
> On 03.06.2019 16:21, Colin King wrote:
>> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>>
>> The less than check for the variable num_lanes is always going to be
>> false because the variable is a u32.  Fix this by making num_lanes an
>> int and also make loop index i an int too.
>>
>> Addresses-Coverity: ("Unsigned compared against 0")
> 
> 
> Is there a rule in Kernel of adding such tags?
> 
> I have spotted only: Addresses-Coverity-ID?
> 

Unfortunately I'm running a Coverity in-house and so the Coverity ID is
not public, so it does not make sense for me to report the ID.

Colin

> 
> Beside this:
> 
> Reviewed-by: Andrzej Hajda <a.hajda@xxxxxxxxxxx>
> 
> Â--
> Regards
> Andrzej
> 
> 
>> Fixes: ff5781634c41 ("drm/bridge: sii902x: Implement HDMI audio support")
>> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>> ---
>>  drivers/gpu/drm/bridge/sii902x.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
>> index d6f98d388ac2..21a947603c88 100644
>> --- a/drivers/gpu/drm/bridge/sii902x.c
>> +++ b/drivers/gpu/drm/bridge/sii902x.c
>> @@ -719,7 +719,7 @@ static int sii902x_audio_codec_init(struct sii902x *sii902x,
>>  		.max_i2s_channels = 0,
>>  	};
>>  	u8 lanes[4];
>> -	u32 num_lanes, i;
>> +	int num_lanes, i;
>>  
>>  	if (!of_property_read_bool(dev->of_node, "#sound-dai-cells")) {
>>  		dev_dbg(dev, "%s: No \"#sound-dai-cells\", no audio\n",
> 
>