linux-kernel - Re: [PATCH] soundwire: bus: provide correct return value on error

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Date:   Wed, 26 Feb 2020 08:54:37 -0600
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     alsa-devel@...a-project.org, tiwai@...e.de,
        gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Hui Wang <hui.wang@...onical.com>, broonie@...nel.org,
        srinivas.kandagatla@...aro.org, jank@...ence.com,
        slawomir.blauciak@...el.com, Sanyog Kale <sanyog.r.kale@...el.com>,
        Bard liao <yung-chuan.liao@...ux.intel.com>,
        Rander Wang <rander.wang@...ux.intel.com>
Subject: Re: [PATCH] soundwire: bus: provide correct return value on error



On 2/26/20 2:03 AM, Vinod Koul wrote:
> On 25-02-20, 10:49, Pierre-Louis Bossart wrote:
>> From: Bard Liao <yung-chuan.liao@...ux.intel.com>
>>
>> It seems to be a typo. It makes more sense to return the return value
>> of sdw_update() instead of the value we want to update.
>>
>> Signed-off-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
>> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
>> ---
>>   drivers/soundwire/bus.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
>> index 13887713f311..b8a7a84aca1c 100644
>> --- a/drivers/soundwire/bus.c
>> +++ b/drivers/soundwire/bus.c
>> @@ -1070,7 +1070,7 @@ static int sdw_initialize_slave(struct sdw_slave *slave)
>>   	if (ret < 0) {
>>   		dev_err(slave->bus->dev,
>>   			"SDW_DP0_INTMASK read failed:%d\n", ret);
>> -		return val;
>> +		return ret;
> 
> good catch. But can we optimize it to:
>>   	}
>>   
>>   	return 0;
> 
> make this as below and remove the return above.

ok, will resend as v2.