Re: [PATCH] drm/bridge: anx7625: Zero error variable when panel bridge not present

[Robert Foss]

On Tue, 14 Jun 2022 at 09:52, AngeloGioacchino Del Regno
<angelogioacchino.delregno@xxxxxxxxxxxxx> wrote:
>
> Il 13/06/22 18:37, Nícolas F. R. A. Prado ha scritto:
> > While parsing the DT, the anx7625 driver checks for the presence of a
> > panel bridge on endpoint 1. If it is missing, pdata->panel_bridge stores
> > the error pointer and the function returns successfully without first
> > cleaning that variable. This is an issue since other functions later
> > check for the presence of a panel bridge by testing the trueness of that
> > variable.
> >
> > In order to ensure proper behavior, zero out pdata->panel_bridge before
> > returning when no panel bridge is found.
> >
> > Fixes: 9e82ea0fb1df ("drm/bridge: anx7625: switch to devm_drm_of_get_bridge")
> > Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
> >
>
> I would've preferred s/zero out/cleanup/g but it's also fine as you wrote it.
> Besides, good catch!
>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
>

Applied to drm-misc-next