[alsa-devel] [PATCH 1/6] ASoC: fsl_ssi: enable IPG clock during AC'97 reg access

[Maciej S. Szmigiero]

Hi Fabio,

On 30.07.2015 17:20, Fabio Estevam wrote:
> Hi Maciej,
> 
> On Thu, Jul 30, 2015 at 11:33 AM, Maciej S. Szmigiero
> <mail at maciej.szmigiero.name> wrote:
> 
>>  static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97,
>> @@ -1151,6 +1160,14 @@ static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97,
>>         unsigned short val = -1;
>>         u32 reg_val;
>>         unsigned int lreg;
>> +       int ret;
>> +
>> +       ret = clk_prepare_enable(fsl_ac97_data->clk);
>> +       if (ret) {
>> +               pr_err("ac97 read clk_prepare_enable failed: %d\n",
>> +                       ret);
>> +               return -1;
> 
> return ret, please.
> 

This function normal return value is an AC'97 register value,
so isn't more appropriate to return 0xffff in case of error
than linux error code?

Best regards,
Maciej Szmigiero