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Message-ID: <ZfsJeGf0uRgKxj-W@nanopsycho>
Date: Wed, 20 Mar 2024 17:06:16 +0100
From: Jiri Pirko <jiri@...nulli.us>
To: Simon Horman <horms@...nel.org>
Cc: Claus Hansen Ries <chr@...ma.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"edumazet@...gle.com" <edumazet@...gle.com>,
	"kuba@...nel.org" <kuba@...nel.org>,
	"pabeni@...hat.com" <pabeni@...hat.com>,
	"michal.simek@....com" <michal.simek@....com>,
	"wei.fang@....com" <wei.fang@....com>,
	"yangyingliang@...wei.com" <yangyingliang@...wei.com>,
	"robh@...nel.org" <robh@...nel.org>,
	"harini.katakam@....com" <harini.katakam@....com>,
	"dan.carpenter@...aro.org" <dan.carpenter@...aro.org>,
	"u.kleine-koenig@...gutronix.de" <u.kleine-koenig@...gutronix.de>,
	"wanghai38@...wei.com" <wanghai38@...wei.com>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net v2] net: ll_temac: platform_get_resource replaced by
 wrong function

Wed, Mar 20, 2024 at 04:22:46PM CET, horms@...nel.org wrote:
>On Wed, Mar 20, 2024 at 02:19:15PM +0000, Claus Hansen Ries wrote:
>> From: Claus Hansen Ries <chr@...ma.com>
>> 
>> Hope I am resubmitting this correctly, I've fixed the issues in 
>> the original submission.
>
>For future reference, the text above probably belongs
>below the scissors ("---"). But I don't think there
>is a need to resubmit just because of that.

Well, otherwise this will be in the git history forever :)


>
>> 
>> platform_get_resource was replaced with devm_platform_ioremap_resource_byname 
>> and is called using 0 as name. This eventually ends up in platform_get_resource_byname
>> in the call stack, where it causes a null pointer in strcmp.
>> 
>> 	if (type == resource_type(r) && !strcmp(r->name, name))
>> 
>> It should have been replaced with devm_platform_ioremap_resource.
>> 
>> Fixes: bd69058f50d5 ("net: ll_temac: Use devm_platform_ioremap_resource_byname()")
>> Signed-off-by: Claus Hansen Ries <chr@...ma.com>
>> Cc: stable@...r.kernel.org
>> ---
>> v2:
>>   - fix accidently converting tabs to spaces and wording in commit message
>> v1: https://marc.info/?l=linux-netdev&m=171087828129633&w=2
>
>Thanks,
>
>Reviewed-by: Simon Horman <horms@...nel.org>
>

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