ALSA: hda - Don't handle ELD notify from invalid port

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commit 4f8e4f3537 upstream.

The current Intel HDMI codec driver supports only three fixed ports
from port B to port D.  However, i915 driver may assign a DP on other
ports, e.g. port A, when no eDP is used.  This incompatibility is
caught later at pin_nid_to_pin_index() and results in a warning
message like "HDMI: pin nid 4 not registered" at each time.

This patch filters out such invalid events beforehand, so that the
kernel won't be too grumbling.

Reported-by: Stefan Assmann <sassmann@kpanic.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Takashi Iwai 2016-03-10 12:02:49 +01:00 • committed by Greg Kroah-Hartman

parent 5fae159b7d

commit ee2a37ab39

1 changed files with 4 additions and 0 deletions

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sound/pci/hda/patch_hdmi.c

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