linux-kernel - Re: [PATCH] drm/mediatek: fix null pointer dereference

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Message-ID: <87c18360-467c-267b-1400-48d985ecdc8a@gmail.com>
Date:   Fri, 28 Oct 2016 12:39:37 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     CK Hu <ck.hu@...iatek.com>
Cc:     p.zabel@...gutronix.de, airlied@...ux.ie,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/mediatek: fix null pointer dereference



On 10/28/2016 10:34 AM, CK Hu wrote:
> Hi, Matthias:
>
> Even though OVL HW would not be enabled before component_add() in
> current design, your patch would be safe for any situation.

Maybe the FW I use left an interrupt pending before loading the kernel 
and this leads to the case where we enter the handler before all data 
structures are set up.

>
> Acked-by CK Hu <ck.hu@...iatek.com>

Thanks!

Matthias