linux-kernel - [PATCH] media: camss: camss-video: Don't zero subdev format again after initialization

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Message-Id: <20230503075340.45755-1-y.oudjana@protonmail.com>
Date:   Wed,  3 May 2023 10:53:40 +0300
From:   Yassine Oudjana <yassine.oudjana@...il.com>
To:     Robert Foss <rfoss@...nel.org>, Todor Tomov <todor.too@...il.com>,
        "Bryan O'Donoghue" <bryan.odonoghue@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Lad Prabhakar <prabhakar.csengg@...il.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     Yassine Oudjana <y.oudjana@...tonmail.com>,
        Yassine Oudjana <yassine.oudjana@...il.com>,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] media: camss: camss-video: Don't zero subdev format again after initialization

From: Yassine Oudjana <y.oudjana@...tonmail.com>

In an earlier commit, setting the which field of the subdev format struct
in video_get_subdev_format was moved to a designated initializer that also
zeroes all other fields. However, the memset call that was zeroing the
fields earlier was left in place, causing the which field to be cleared
after being set in the initializer.

Remove the memset call from video_get_subdev_format to avoid clearing the
initialized which field.

Fixes: ecefa105cc44 ("media: Zero-initialize all structures passed to subdev pad operations")
Signed-off-by: Yassine Oudjana <y.oudjana@...tonmail.com>
---
 drivers/media/platform/qcom/camss/camss-video.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/media/platform/qcom/camss/camss-video.c b/drivers/media/platform/qcom/camss/camss-video.c
index 898f32177b12..8640db306026 100644
--- a/drivers/media/platform/qcom/camss/camss-video.c
+++ b/drivers/media/platform/qcom/camss/camss-video.c
@@ -353,7 +353,6 @@ static int video_get_subdev_format(struct camss_video *video,
 	if (subdev == NULL)
 		return -EPIPE;
 
-	memset(&fmt, 0, sizeof(fmt));
 	fmt.pad = pad;
 
 	ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &fmt);
-- 
2.40.0