ALSA: hda - Handle -1 as invalid position, too
authorTakashi Iwai <tiwai@suse.de>
Tue, 7 Jun 2011 10:23:23 +0000 (12:23 +0200)
committerTakashi Iwai <tiwai@suse.de>
Tue, 7 Jun 2011 10:23:23 +0000 (12:23 +0200)
When reading from the position-buffer results in -1, handle as it's
invalid and falls back to LPIB mode as well as 0.

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

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