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Kai Vehmanen 2660b376c0 ALSA: hda/hdmi: fix race in monitor detection during probe 
[ Upstream commit ca76282b6f ]

A race exists between build_pcms() and build_controls() phases of codec
setup. Build_pcms() sets up notifier for jack events. If a monitor event
is received before build_controls() is run, the initial jack state is
lost and never reported via mixer controls.

The problem can be hit at least with SOF as the controller driver. SOF
calls snd_hda_codec_build_controls() in its workqueue-based probe and
this can be delayed enough to hit the race condition.

Fix the issue by invalidating the per-pin ELD information when
build_controls() is called. The existing call to hdmi_present_sense()
will update the ELD contents. This ensures initial monitor state is
correctly reflected via mixer controls.

BugLink: https://github.com/thesofproject/linux/issues/1687
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200428123836.24512-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-05-20 08:17:07 +02:00
arch x86/unwind/orc: Fix error path for bad ORC entry type 2020-05-20 08:17:01 +02:00
block block, bfq: fix use-after-free in bfq_idle_slice_timer_body 2020-04-24 08:00:30 +02:00
certs Replace magic for trusting the secondary keyring with #define 2018-09-09 19:55:54 +02:00
crypto crypto: api - Fix race condition in crypto_spawn_alg 2020-02-14 16:32:14 -05:00
Documentation ALSA: doc: Document PC Beep Hidden Register on Realtek ALC256 2020-04-24 08:00:35 +02:00
drivers cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once 2020-05-20 08:17:06 +02:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:20:30 +01:00
fs f2fs: fix to avoid memory leakage in f2fs_listxattr 2020-05-20 08:17:04 +02:00
include blktrace: Protect q->blk_trace with RCU 2020-05-20 08:17:03 +02:00
init fork: fix some -Wmissing-prototypes warnings 2019-12-05 15:37:52 +01:00
ipc ipc/util.c: sysvipc_find_ipc() should increase position index 2020-05-02 17:24:14 +02:00
kernel blktrace: fix dereference after null check 2020-05-20 08:17:03 +02:00
lib lib/mpi: Fix building for powerpc with clang 2020-05-10 10:29:01 +02:00
mm shmem: fix possible deadlocks on shmlock_user_lock 2020-05-20 08:17:04 +02:00
net drop_monitor: work around gcc-10 stringop-overflow warning 2020-05-20 08:17:05 +02:00
samples samples/bpf: Don't try to remove user's homedir on clean 2020-02-14 16:32:13 -05:00
scripts scripts/decodecode: fix trapping instruction formatting 2020-05-20 08:17:01 +02:00
security selinux: properly handle multiple messages in selinux_netlink_send() 2020-05-05 19:15:53 +02:00
sound ALSA: hda/hdmi: fix race in monitor detection during probe 2020-05-20 08:17:07 +02:00
tools objtool: Fix stack offset tracking for indirect CFAs 2020-05-20 08:17:01 +02:00
usr initramfs: restore default compression behavior 2020-04-13 10:34:19 +02:00
virt KVM: arm: vgic: Fix limit condition when writing to GICD_I[CS]ACTIVER 2020-05-20 08:16:58 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: Update drm/i915 bug filing URL 2020-02-28 16:36:12 +01:00
Makefile Linux 4.14.180 2020-05-10 10:29:03 +02:00
README

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.