linux-kernel - [PATCH] drm/bochs: Add check for drm_simple_display_pipe

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Date: Fri, 24 May 2024 11:06:05 +0800
From: Chen Ni <nichen@...as.ac.cn>
To: kraxel@...hat.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	daniel@...ll.ch
Cc: virtualization@...ts.linux.dev,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] drm/bochs: Add check for drm_simple_display_pipe_init

Add check for the return value of drm_simple_display_pipe_init() and
return the error if it fails in order to catch the error.

Signed-off-by: Chen Ni <nichen@...as.ac.cn>
---
 drivers/gpu/drm/tiny/bochs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/bochs.c b/drivers/gpu/drm/tiny/bochs.c
index c23c9f0cf49c..31ad2bc4ee22 100644
--- a/drivers/gpu/drm/tiny/bochs.c
+++ b/drivers/gpu/drm/tiny/bochs.c
@@ -550,13 +550,15 @@ static int bochs_kms_init(struct bochs_device *bochs)
 	bochs->dev->mode_config.funcs = &bochs_mode_funcs;
 
 	bochs_connector_init(bochs->dev);
-	drm_simple_display_pipe_init(bochs->dev,
+	ret = drm_simple_display_pipe_init(bochs->dev,
 				     &bochs->pipe,
 				     &bochs_pipe_funcs,
 				     bochs_formats,
 				     ARRAY_SIZE(bochs_formats),
 				     NULL,
 				     &bochs->connector);
+	if (ret)
+		return ret;
 
 	drm_mode_config_reset(bochs->dev);
 
-- 
2.25.1