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Chris Wilson 7581d5ca2b drm/i915/fbdev: Check for existence of ifbdev->vma before operations
Commit fabef82562 ("drm/i915: Drop struct_mutex around frontbuffer
flushes") adds a dependency to ifbdev->vma when flushing the framebufer,
but the checks are only against the existence of the ifbdev->fb and not
against ifbdev->vma. This leaves a window of opportunity where we may
try to operate on the fbdev prior to it being probed (thanks to
asynchronous booting).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101534
Fixes: fabef82562 ("drm/i915: Drop struct_mutex around frontbuffer flushes")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170622160211.783-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: stable@vger.kernel.org
(cherry picked from commit 15727ed0d9)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2017-07-10 10:33:03 +03:00
arch Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2017-06-11 16:17:29 -07:00
block block, bfq: access and cache blkg data only when safe 2017-06-08 09:51:10 -06:00
certs
crypto crypto : asymmetric_keys : verify_pefile:zero memory content before freeing 2017-06-09 13:29:50 +10:00
Documentation drm/tegra: Changes for v4.13-rc1 2017-06-20 11:07:03 +10:00
drivers drm/i915/fbdev: Check for existence of ifbdev->vma before operations 2017-07-10 10:33:03 +03:00
firmware
fs Fix various bug fixes in ext4 caused by races and memory allocation 2017-06-11 11:57:47 -07:00
include Merge tag 'drm-misc-next-2017-06-19_0' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-06-21 08:57:34 +10:00
init
ipc
kernel Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-06-10 10:49:42 -07:00
lib
mm mm: consider memblock reservations for deferred memory initialization sizing 2017-06-02 15:07:38 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-06 14:30:17 -07:00
samples
scripts scripts/gdb: make lx-dmesg command work (reliably) 2017-06-02 15:07:38 -07:00
security KEYS: fix refcount_inc() on zero 2017-06-09 13:29:50 +10:00
sound Linux 4.12-rc5 2017-06-16 13:58:27 +10:00
tools perf symbols: Kill dso__build_id_is_kmod() 2017-06-08 15:39:34 -03:00
usr initramfs: fix disabling of initramfs (and its compression) 2017-06-02 15:07:37 -07:00
virt KVM: arm/arm64: Handle possible NULL stage2 pud when ageing pages 2017-06-06 15:28:40 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Linux 4.12-rc5 2017-06-16 13:58:27 +10:00
Makefile Linux 4.12-rc5 2017-06-11 16:48:20 -07:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.