| Message ID | 20230605144812.15241-12-tzimmermann@suse.de (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | fbdev: Make userspace interfaces optional | expand |
On Mon, Jun 05, 2023 at 04:47:53PM +0200, Thomas Zimmermann wrote: > 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. > > Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Fixes: 88017bda96a5 ("ep93xx video driver") regards, dan carpenter
Thomas Zimmermann <tzimmermann@suse.de> writes: > 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. > > Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> > --- Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
diff --git a/drivers/video/fbdev/ep93xx-fb.c b/drivers/video/fbdev/ep93xx-fb.c index f6cd200fe50f..37309f9dbe82 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;
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. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> --- drivers/video/fbdev/ep93xx-fb.c | 1 - 1 file changed, 1 deletion(-)