linux-kernel - Re: [PATCH 4/6] [media] go7007: Use common error handling code in s2250

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Date:   Wed, 20 Sep 2017 09:09:16 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     Dan Carpenter <dan.carpenter@...cle.com>,
        linux-media@...r.kernel.org
Cc:     Hans Verkuil <hans.verkuil@...co.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 4/6] [media] go7007: Use common error handling code in
 s2250_probe()

>> @@ -555,17 +553,13 @@ static int s2250_probe(struct i2c_client *client,
>>  	/* initialize the audio */
>>  	if (write_regs(audio, aud_regs) < 0) {
>>  		dev_err(&client->dev, "error initializing audio\n");
>> -		goto fail;
>> +		goto e_io;
> 
> Preserve the error code.

Do you suggest then to adjust the implementation of the function "write_regs"
so that a more meaningful value would be used instead of the failure indication "-1"?

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/media/usb/go7007/s2250-board.c?h=v4.14-rc1#n302
http://elixir.free-electrons.com/linux/v4.14-rc1/source/drivers/media/usb/go7007/s2250-board.c#L298

Regards,
Markus