[PATCH v3 14/38] fbdev/ep93xx-fb: Do not assign to struct fb_info.dev

From
Thomas Zimmermann <tzimmermann@suse.de>
Date
2023-06-13 11:11:03
Also in
dri-devel, linux-omap, linux-sh, linux-staging, lkml, stable
Reply to
Thomas Zimmermann, 2023-06-13
Do not assing the Linux device to struct fb_info.dev. The call to
register_framebuffer() initializes the field to the fbdev device.
Drivers should not override its value.

Fixes a bug where the driver incorrectly decreases the hardware
device's reference counter and leaks the fbdev device.

v2:
	* add Fixes tag (Dan)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 88017bda96a5 ("ep93xx video driver")
Cc: <redacted> # v2.6.32+
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Sam Ravnborg <redacted>
---
 drivers/video/fbdev/ep93xx-fb.c | 1 -
 1 file changed, 1 deletion(-)
diff --git a/drivers/video/fbdev/ep93xx-fb.c b/drivers/video/fbdev/ep93xx-fb.c
index f6cd200fe50ff..37309f9dbe828 100644
--- a/drivers/video/fbdev/ep93xx-fb.c
+++ b/drivers/video/fbdev/ep93xx-fb.c
@@ -474,7 +474,6 @@ static int ep93xxfb_probe(struct platform_device *pdev)
 	if (!info)
 		return -ENOMEM;
 
-	info->dev = &pdev->dev;
 	platform_set_drvdata(pdev, info);
 	fbi = info->par;
 	fbi->mach_info = mach_info;
-- 
2.41.0
Thread (46 messages) 46 messages, 3 authors, last reply 2023-06-26
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