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| author |   Mohan Kumar <mkumard@nvidia.com> | 2022-08-11 10:57:04 +0530 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2022-08-11 07:44:59 +0200 |
| commit | 636aa8807b5780b76609b40cd3d3e1b5a225471c (patch) | |
| tree | 1d518f4af25362986b7d7f1fd44af2f591760158 /sound/pci/hda/patch_realtek.c | |
| parent | ALSA: hda/cirrus - support for iMac 12,1 model (diff) | |
| download | linux-dev-636aa8807b5780b76609b40cd3d3e1b5a225471c.tar.xz linux-dev-636aa8807b5780b76609b40cd3d3e1b5a225471c.zip | |
ALSA: hda: Fix crash due to jack poll in suspend
With jackpoll_in_suspend flag set, there is a possibility that
jack poll worker thread will run even after system suspend was
completed. Any register access after system pm callback flow
will result in kernel crash as still jack poll worker thread
tries to access registers.
To fix the crash issue during system flow, cancel the jack poll
worker thread during system pm prepare callback and cancel the
worker thread at start of runtime suspend callback and re-schedule
at last to avoid any unwarranted access of register by worker thread
during suspend flow.
Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
Fixes: b33115bd05af ("ALSA: hda: Jack detection poll in suspend state")
Link: https://lore.kernel.org/r/20220811052704.2944-1-mkumard@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_realtek.c')
0 files changed, 0 insertions, 0 deletions