linux-kernel - [RFC PATCH v1 1/3] drm/panel: mantix: Don't dereference NULL mode

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Message-Id: <c80b4cfd4da5cf27cc6e0d213ddabf0aebd054bb.1600707235.git.agx@sigxcpu.org>
Date:   Mon, 21 Sep 2020 18:55:50 +0200
From:   Guido Günther <agx@...xcpu.org>
To:     Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [RFC PATCH v1 1/3] drm/panel: mantix: Don't dereference NULL mode

Don't dereference mode which was just NULL checked.

Signed-off-by: Guido Günther <agx@...xcpu.org>
Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
---
 drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
index 3482e28e30fc..4a7fbf64bb7a 100644
--- a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
+++ b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
@@ -204,7 +204,7 @@ static int mantix_get_modes(struct drm_panel *panel,
 	if (!mode) {
 		dev_err(ctx->dev, "Failed to add mode %ux%u@%u\n",
 			default_mode.hdisplay, default_mode.vdisplay,
-			drm_mode_vrefresh(mode));
+			drm_mode_vrefresh(&default_mode));
 		return -ENOMEM;
 	}
 
-- 
2.26.2