linux-kernel - RE: [PATCH 17/20] media: s5p-mfc: Clear workbit to handle error condition

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Message-ID: <01eb01d89065$ac278f40$0476adc0$@samsung.com>
Date:   Tue, 5 Jul 2022 17:22:12 +0530
From:   "Smitha T Murthy" <smitha.t@...sung.com>
To:     "'Krzysztof Kozlowski'" <krzysztof.kozlowski@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-media@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Cc:     <m.szyprowski@...sung.com>, <andrzej.hajda@...el.com>,
        <mchehab@...nel.org>, <hverkuil-cisco@...all.nl>,
        <ezequiel@...guardiasur.com.ar>, <jernej.skrabec@...il.com>,
        <benjamin.gaignard@...labora.com>, <stanimir.varbanov@...aro.org>,
        <dillon.minfei@...il.com>, <david.plowman@...pberrypi.com>,
        <mark.rutland@....com>, <robh+dt@...nel.org>, <krzk+dt@...nel.org>,
        <andi@...zian.org>, <alim.akhtar@...sung.com>,
        <aswani.reddy@...sung.com>, <pankaj.dubey@...sung.com>,
        <linux-fsd@...la.com>
Subject: RE: [PATCH 17/20] media: s5p-mfc: Clear workbit to handle error
 condition



> -----Original Message-----
> From: Krzysztof Kozlowski [mailto:krzysztof.kozlowski@...aro.org]
> Sent: Tuesday, May 17, 2022 7:34 PM
> To: Smitha T Murthy <smitha.t@...sung.com>; linux-arm-
> kernel@...ts.infradead.org; linux-media@...r.kernel.org; linux-
> kernel@...r.kernel.org; devicetree@...r.kernel.org
> Cc: m.szyprowski@...sung.com; andrzej.hajda@...el.com;
> mchehab@...nel.org; hverkuil-cisco@...all.nl;
> ezequiel@...guardiasur.com.ar; jernej.skrabec@...il.com;
> benjamin.gaignard@...labora.com; stanimir.varbanov@...aro.org;
> dillon.minfei@...il.com; david.plowman@...pberrypi.com;
> mark.rutland@....com; robh+dt@...nel.org; krzk+dt@...nel.org;
> andi@...zian.org; alim.akhtar@...sung.com; aswani.reddy@...sung.com;
> pankaj.dubey@...sung.com; linux-fsd@...la.com
> Subject: Re: [PATCH 17/20] media: s5p-mfc: Clear workbit to handle error
> condition
> 
> On 17/05/2022 14:55, Smitha T Murthy wrote:
> > During error on CLOSE_INSTANCE command, ctx_work_bits was not getting
> > cleared. During consequent mfc execution NULL pointer dereferencing of
> > this context led to kernel panic. This patch fixes this issue by
> > making sure to clear ctx_work_bits always.
> >
> > Cc: linux-fsd@...la.com
> > Signed-off-by: Smitha T Murthy <smitha.t@...sung.com>
> 
> This looks like a bugfix so:
> 1. Send it separately please.
> 2. Add Fixes tag.
> 3. Add Cc stable tag.
> 
> Best regards,
> Krzysztof

Ok I will send this separately

Regards,
Smitha