linux-kernel - [PATCH] drm/tegra: output: Fix 'Uninitialized pointer read' issue

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Message-Id: <20240903074722.4328-1-qianqiang.liu@163.com>
Date: Tue,  3 Sep 2024 15:47:22 +0800
From: Qianqiang Liu <qianqiang.liu@....com>
To: thierry.reding@...il.com,
	mperttunen@...dia.com
Cc: linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Qianqiang Liu <qianqiang.liu@....com>
Subject: [PATCH] drm/tegra: output: Fix 'Uninitialized pointer read' issue

drm_edid may be passed to drm_edid_connector_update() without an
initiated value

Fixes: 98365ca74cbf (drm/tegra: convert to struct drm_edid)
Signed-off-by: Qianqiang Liu <qianqiang.liu@....com>
---
 drivers/gpu/drm/tegra/output.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c
index e6b5863fec71..49e4f63a5550 100644
--- a/drivers/gpu/drm/tegra/output.c
+++ b/drivers/gpu/drm/tegra/output.c
@@ -21,7 +21,7 @@
 int tegra_output_connector_get_modes(struct drm_connector *connector)
 {
 	struct tegra_output *output = connector_to_output(connector);
-	const struct drm_edid *drm_edid;
+	const struct drm_edid *drm_edid = NULL;
 	int err = 0;
 
 	/*
-- 
2.39.2