linux-kernel - Re: [linux-safety] [PATCH] PCI: tegra: Use PTR_ERR_OR

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Date:   Mon, 23 Nov 2020 14:51:08 +0000
From:   Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>
To:     Thierry Reding <thierry.reding@...il.com>,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>,
        Neil Armstrong <narmstrong@...libre.com>
Cc:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        linux-kernel@...r.kernel.org, linux-safety@...ts.elisa.tech,
        linux-tegra@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [linux-safety] [PATCH] PCI: tegra: Use PTR_ERR_OR_ZERO


On 16/11/2020 17:01, Thierry Reding wrote:
> On Mon, Nov 16, 2020 at 04:54:07PM +0000, Sudip Mukherjee wrote:
>> Coccinelle suggested using PTR_ERR_OR_ZERO() and looking at the code,
>> we can use PTR_ERR_OR_ZERO() instead of checking IS_ERR() and then
>> doing 'return 0'.
>>
>> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@...il.com>
>> ---
>>  drivers/pci/controller/pci-tegra.c | 4 +---
>>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> This has been proposed multiple times in the past and Bjorn and I have
> agreed every time that this is not an improvement, so sorry, but NAK.

Thanks Thierry and Neil. I have now added a blacklist script in our CI
so "PTR_ERR_OR_ZERO" will not be flagged for anything in drivers/pci/*
anymore in our testing.



-- 
Regards
Sudip