linux-kernel - Re: [PATCH 1/4] of/device: Add a way to probe drivers by match data

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Message-ID: <154169993998.88331.10494065577891939152@swboyd.mtv.corp.google.com>
Date:   Thu, 08 Nov 2018 09:58:59 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Matthias Brugger <matthias.bgg@...il.com>,
        Michael Turquette <mturquette@...libre.com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-clk@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        devicetree@...r.kernel.org, Ryder Lee <ryder.lee@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>
Subject: Re: [PATCH 1/4] of/device: Add a way to probe drivers by match data

Quoting Matthias Brugger (2018-11-08 00:29:46)
> On 06/11/2018 19:36, Stephen Boyd wrote:
> > +int platform_driver_probe_by_of_match_data(struct platform_device *pdev)
> > +{
> > +     int (*probe_func)(struct platform_device *pdev);
> > +
> > +     probe_func = of_device_get_match_data(&pdev->dev);
> 
> Shouldn't we check if probe_func is not NULL?

Is the oops from the NULL pointer deref insufficient?