linux-kernel - Re: [PATCH RESEND] drm/msm/dpu: Fix smatch warnings about variable dereferenced before check

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Message-ID: <wcbaoiswckhbm4rzbu26ueccdh4jzahc5sictyuqrxfknc5ge7@va2gbq2jiyes>
Date: Sat, 31 Jan 2026 10:29:10 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: sunliming <sunliming@...ux.dev>
Cc: Dan Carpenter <dan.carpenter@...aro.org>, robin.clark@....qualcomm.com,
        lumag@...nel.org, airlied@...il.com, simona@...ll.ch, sean@...rly.run,
        marijn.suijten@...ainline.org, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, sunliming <sunliming@...inos.cn>,
        kernel test robot <lkp@...el.com>, Dan Carpenter <error27@...il.com>
Subject: Re: [PATCH RESEND] drm/msm/dpu: Fix smatch warnings about variable
 dereferenced before check

On Fri, Jan 30, 2026 at 01:30:35PM +0800, sunliming wrote:
> 
> On 2026/1/29 15:07, Dan Carpenter wrote:
> > On Thu, Jan 29, 2026 at 10:49:19AM +0800,sunliming@...ux.dev  wrote:
> > > From: sunliming<sunliming@...inos.cn>
> > > 
> > > Fix below smatch warnings:
> > > drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp_v13.c:161 dpu_hw_sspp_setup_pe_config_v13()
> > > warn: variable dereferenced before check 'ctx' (see line 159)
> > > 
> > > Reported-by: kernel test robot<lkp@...el.com>
> > > Reported-by: Dan Carpenter<error27@...il.com>
> > > Closes:https://lore.kernel.org/r/202601252214.oEaY3UZM-lkp@intel.com/
> > > Signed-off-by: sunliming<sunliming@...inos.cn>
> > > ---
> 
> Previously, a maintainer suggested that the name should match the email
> address,
> 
> but community patches have consistently used the name "sunliming" since
> then.

There are several possible options here, but I see that this one have
been already used to contribute patches, which are accepted. I'm fine
with accepting this SoB.

> 
> > > Could you capitalize your name?  It's supposed to be a bit formal like
> > > signing a legal document.
> > > 
> > > This isn't a RESEND, it's a v2.  A RESEND means we accidentally ignored
> > > your email so now you have to send the exact same email again.
> > > 
> > > https://staticthinking.wordpress.com/2022/07/27/how-to-send-a-v2-patch/
> Get it. thanks.
> > > regards,
> > > dan carpenter
> > > 

-- 
With best wishes
Dmitry