Takashi Iwai f1d91f0e9d fbdev: Fix invalid page access after closing deferred I/O devices ... commit 3efc61d952 upstream. When a fbdev with deferred I/O is once opened and closed, the dirty pages still remain queued in the pageref list, and eventually later those may be processed in the delayed work. This may lead to a corruption of pages, hitting an Oops. This patch makes sure to cancel the delayed work and clean up the pageref list at closing the device for addressing the bug. A part of the cleanup code is factored out as a new helper function that is called from the common fb_release(). Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Tested-by: Miko Larsson <mikoxyzzz@gmail.com> Fixes: 56c134f7f1 ("fbdev: Track deferred-I/O pages in pageref struct") Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20230129082856.22113-1-tiwai@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-02-22 12:59:46 +01:00
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backlight	- New Drivers	2022-10-05 10:45:15 -07:00
console	fbdev: Move fbdev drivers from strlcpy to strscpy	2022-08-24 22:06:15 +02:00
fbdev	fbdev: Fix invalid page access after closing deferred I/O devices	2023-02-22 12:59:46 +01:00
logo
aperture.c	fbdev/core: Avoid uninitialized read in aperture_remove_conflicting_pci_device()	2022-10-27 09:20:05 +02:00
display_timing.c
hdmi.c	video/hdmi: Add audio_infoframe packing for DP	2022-09-04 15:31:59 +03:00
Kconfig	drm: Implement DRM aperture helpers under video/	2022-06-27 11:07:55 +02:00
Makefile	drm: Implement DRM aperture helpers under video/	2022-06-27 11:07:55 +02:00
of_display_timing.c	video: fbdev: of: display_timing: Remove a redundant zeroing of memory	2022-04-04 08:55:23 +02:00
of_videomode.c	video: Fix kernel-doc warnings in of_display_timing + of_videomode	2020-11-29 22:42:17 +01:00
vgastate.c
videomode.c