linux-kernel - [PATCH -next] drm/logicvc: Fix error return code in logicvc_layer

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Date:   Thu, 23 Jun 2022 22:05:07 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>
CC:     <paul.kocialkowski@...tlin.com>, <airlied@...ux.ie>,
        <daniel@...ll.ch>, <mripard@...nel.org>
Subject: [PATCH -next] drm/logicvc: Fix error return code in logicvc_layer_init()

Fix error return code when logicvc_layer_formats_lookup() fails.

Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/gpu/drm/logicvc/logicvc_layer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/logicvc/logicvc_layer.c b/drivers/gpu/drm/logicvc/logicvc_layer.c
index fbebe966f93a..54b5931d879f 100644
--- a/drivers/gpu/drm/logicvc/logicvc_layer.c
+++ b/drivers/gpu/drm/logicvc/logicvc_layer.c
@@ -489,6 +489,7 @@ static int logicvc_layer_init(struct logicvc_drm *logicvc,
 
 	formats = logicvc_layer_formats_lookup(layer);
 	if (!formats) {
+		ret = -EINVAL;
 		drm_err(drm_dev, "Failed to lookup formats for layer #%d\n",
 			index);
 		goto error;
-- 
2.25.1