netdev - Re: [PATCH v2 5/5] net: dsa: exit probe if no switch were found

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <56137640.8060108@baylibre.com>
Date:	Tue, 6 Oct 2015 08:20:32 +0100
From:	Neil Armstrong <narmstrong@...libre.com>
To:	Florian Fainelli <f.fainelli@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Guenter Roeck <linux@...ck-us.net>,
	vivien.didelot@...oirfairelinux.com, Andrew Lunn <andrew@...n.ch>,
	Fabian Frederick <fabf@...net.be>,
	Pavel Nakonechny <pavel.nakonechny@...tlab.ru>,
	Joe Perches <joe@...ches.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, nbd@...nwrt.org,
	sergei.shtylyov@...entembedded.com
Subject: Re: [PATCH v2 5/5] net: dsa: exit probe if no switch were found

On 10/03/2015 09:27 PM, Florian Fainelli wrote:
> Le 03/10/2015 07:26, Neil Armstrong a écrit :
>> If no switch were found in dsa_setup_dst, return -ENODEV and
>> exit the dsa_probe cleanly.
>>
>> Tested-by: Andrew Lunn <andrew@...n.ch>
>> Tested-by: Florian Fainelli <f.fainelli@...il.com>
>> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
>> ---
> 
> [snip]
> 
>>  static int dsa_probe(struct platform_device *pdev)
>> @@ -926,9 +937,9 @@ static int dsa_probe(struct platform_device *pdev)
>>
>>  	platform_set_drvdata(pdev, dst);
>>
>> -	dsa_setup_dst(dst, dev, &pdev->dev, pd);
>> -
>> -	return 0;
>> +	ret = dsa_setup_dst(dst, dev, &pdev->dev, pd);
>> +	if (!ret)
>> +		return 0;
> 
> That logic is a little weird, I would just go with something like this:
> 
> ret = dsa_setup_dst(ds, dev, &pdev->dev, pd);
> if (ret)
> 	goto out;
> 
> return 0;
> 
Yes you are right, the goto out is needed to clean up the of_probe resources.

I will send a v3 with this fixed.

Neil
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html