netdev - Re: [v2] net:ethernet:cavium:octeon:octeon_mgmt: Handle return NULL error from devm

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: <7c3bf421-eb64-9dfc-4767-e255f293ff28@gmail.com>
Date:   Thu, 15 Dec 2016 00:35:13 +0530
From:   arvind Yadav <arvind.yadav.cs@...il.com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [v2] net:ethernet:cavium:octeon:octeon_mgmt: Handle return NULL
 error from devm_ioremap

Hi,

As per your suggestion, I have change the subject.

Thanks

On Thursday 15 December 2016 12:24 AM, Florian Fainelli wrote:
> On 12/14/2016 10:39 AM, arvind Yadav wrote:
>> Hi David,
>>
>> I have gave my comment.
>>
>> Thanks
>> Arvind
>>
>> On Wednesday 14 December 2016 11:44 PM, David Daney wrote:
>>> On 12/14/2016 10:06 AM, arvind Yadav wrote:
>>>> Yes, I have seen this error. We have a device with very less memory.
>>>> Basically it's OMAP2 board. We have to port Android L on this.
>>>> It's has 3.10 kernel version. In this device, we were getting Page
>>>> allocation failure.
>>> This makes absolutely no sense to me.  OCTEON is a mips64 SoC with a
>>> ton of memory where ioremap can never fail, and it doesn't run
>>> Android, and you are talking about OMAP2.
>>            -I just gave as example where i have seen ioremap issue.
>> Please don't relate. I know, Now it will not fail.  ioremap will through
>> NULL on failure. We should catch this error. Even other driver of MIPS
>> soc is having same check. It's just check which will not impact any
>> functionality or performance of this driver. It will avoid NULL pointer
>> error. We know, if  function is returning any error. we should catch.
> Your patch subject should also be changed to insert spaces between
> semicolon, so this would be:
>
> net: ethernet: cavium: octeon: octeon_mgmt: