linux-kernel - Re: [PATCH v4 12/13] i2c: qcom-geni: Store of_device

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Message-ID: <df7cbe46-153e-4959-911a-14600b3bea21@oss.qualcomm.com>
Date: Tue, 3 Feb 2026 13:25:29 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Praveen Talari <praveen.talari@....qualcomm.com>,
        Andi Shyti <andi.shyti@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Mukesh Kumar Savaliya <mukesh.savaliya@....qualcomm.com>,
        Viken Dadhaniya <viken.dadhaniya@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, linux-arm-msm@...r.kernel.org,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, bjorn.andersson@....qualcomm.com,
        dmitry.baryshkov@....qualcomm.com
Cc: prasad.sodagudi@....qualcomm.com, quic_vtanuku@...cinc.com,
        aniket.randive@....qualcomm.com, chandana.chiluveru@....qualcomm.com,
        jyothi.seerapu@....qualcomm.com
Subject: Re: [PATCH v4 12/13] i2c: qcom-geni: Store of_device_id data in
 driver private struct

On 2/2/26 7:09 PM, Praveen Talari wrote:
> To avoid repeatedly fetching and checking platform data across various
> functions, store the struct of_device_id data directly in the i2c
> private structure. This change enhances code maintainability and reduces
> redundancy.
> 
> Acked-by: Viken Dadhaniya <viken.dadhaniya@....qualcomm.com>
> Signed-off-by: Praveen Talari <praveen.talari@....qualcomm.com>
> ---

[...]

>  
> -	desc = device_get_match_data(&pdev->dev);
> +	gi2c->dev_data = device_get_match_data(&pdev->dev);

Because you dereference it unconditionally later, this should be
null-checked

Konrad