linux-kernel - Re: [PATCH v2] drm/atmel_hlcdc: Fix uninitialized variable

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Message-ID: <rr7pp6a77tmur62vu2xdpasokokta7g6kcgjcd4iydmzyqpd5e@z45genf4gsv3>
Date: Mon, 14 Oct 2024 10:38:50 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Advait Dhamorikar <advaitdhamorikar@...il.com>
Cc: Sam Ravnborg <sam@...nborg.org>, 
	Boris Brezillon <bbrezillon@...nel.org>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
	Nicolas Ferre <nicolas.ferre@...rochip.com>, Alexandre Belloni <alexandre.belloni@...tlin.com>, 
	Claudiu Beznea <claudiu.beznea@...on.dev>, dri-devel@...ts.freedesktop.org, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, skhan@...uxfoundation.org, 
	anupnewsmail@...il.com, kernel test robot <lkp@...el.com>, 
	Dan Carpenter <error27@...il.com>
Subject: Re: [PATCH v2] drm/atmel_hlcdc: Fix uninitialized variable

On Mon, Oct 07, 2024 at 08:39:04PM +0530, Advait Dhamorikar wrote:
> atmel_hlcdc_plane_update_buffers: may use an uninitialized
> sr variable when the if condition remains unsatisfied.
> The variable may contain an arbitrary value left from earlier computations.
> 
> Reported-by: kernel test robot <lkp@...el.com>
> Reported-by: Dan Carpenter <error27@...il.com>
> Closes: https://lore.kernel.org/r/202409240320.MZPgi3Up-lkp@intel.com/
> Signed-off-by: Advait Dhamorikar <advaitdhamorikar@...il.com>

Fixes: d498771b0b83 ("drm: atmel_hlcdc: Add support for XLCDC using IP specific driver ops")

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

-- 
With best wishes
Dmitry