linux-kernel - Re: [PATCH v4 2/3] ata: ahci

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Date:	Thu, 9 Jan 2014 17:07:29 +0530
From:	Roger Quadros <rogerq@...com>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	<tj@...nel.org>
CC:	<kishon@...com>, <b.zolnierkie@...sung.com>, <hdegoede@...hat.com>,
	<arnd@...db.de>, <linux-ide@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	Balaji T K <balajitk@...com>
Subject: Re: [PATCH v4 2/3] ata: ahci_platform: Manage SATA PHY

On 01/09/2014 04:50 PM, Sergei Shtylyov wrote:
> On 09-01-2014 14:56, Roger Quadros wrote:
> 
>> From: Balaji T K <balajitk@...com>
> 
>> Some platforms have a PHY hooked up to the
>> SATA controller. The PHY needs to be initialized
>> and powered up for SATA to work. We do that
>> using the PHY framework.
> 
>> [Roger Q] Cleaned up.
> 
>> CC: Tejun Heo <tj@...nel.org>
>> Signed-off-by: Balaji T K <balajitk@...com>
>> Signed-off-by: Roger Quadros <rogerq@...com>
> [...]
> 
>> diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
>> index d5ced13..b476642 100644
>> --- a/drivers/ata/ahci_platform.c
>> +++ b/drivers/ata/ahci_platform.c
>> @@ -142,6 +142,39 @@ static int ahci_probe(struct platform_device *pdev)
>>           }
>>       }
>>
>> +    hpriv->phy = devm_phy_get(dev, "sata-phy");
>> +    if (IS_ERR(hpriv->phy)) {
>> +        rc = PTR_ERR(hpriv->phy);
>> +        switch (rc) {
>> +        case -ENODEV:
>> +        case -ENOSYS:
>> +            /* continue normally */
>> +            hpriv->phy = NULL;
>> +            break;
>> +
>> +        case -EPROBE_DEFER:
>> +            goto disable_unprepare_clk;
>> +            break;
> 
>    Well, well, *break* after *goto*? :-)
> 
I know it is pointless functionally, but it is just my preference
aesthetically.

Is it much of an issue if left as is?

cheers,
-roger

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