ALSA: hda - Allow one chance for zero NID in connection list

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The commit [2e9bf24: ALSA: hda_codec: Check for invalid zero
connections] trims the whole connection list when an invalid value is
reported by the hardware.  But some codecs (at least AD1986A) may give
a zero NID in the middle of the connection list, so dropping the whole
list isn't good for such cases.

In this patch, as a workaround, allow a single zero NID in the read
connection list.  If it hits zero twice, it's handled as an error, so
that we can avoid "too many connections" errors.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

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This commit is contained in:

Takashi Iwai 2012-12-20 10:45:55 +01:00

parent 624d914d09

commit 5fdaecdb0d

1 changed files with 2 additions and 1 deletions

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sound/pci/hda/hda_codec.c

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