ALSA: hda - Fix race between PM ops and HDA init/probe

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PM ops could be triggered before HDA is done initializing
and cause PM to set HDA controller to D3Hot.  This can result
in "CORB reset timeout#2, CORBRP = 65535" and "no codecs
initialized".  Additionally, PM ops can be triggered before
azx_probe_continue finishes (async probe).  This can result
in a NULL deref kernel crash.

To fix this, avoid PM ops if !chip->running.

Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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U. Artie Eoff 2015-07-28 13:29:56 -07:00 • committed by Takashi Iwai

parent 2d1cb7f658

commit 342e844905

1 changed files with 3 additions and 3 deletions

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sound/pci/hda/hda_intel.c

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