ALSA: hda - Fix potential endless loop at applying quirks
authorTakashi Iwai <tiwai@suse.de>
Thu, 29 Aug 2019 07:52:02 +0000 (09:52 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 16 Sep 2019 06:20:43 +0000 (08:20 +0200)
commit3dd3ca376c0868a718999978fcf58c3a60853fd8
tree1fabe79ba7c43867481b40d4328cea4b4bbe2bbe
parente2cd24b629389b52a31d96d226ed150dacab9cdd
ALSA: hda - Fix potential endless loop at applying quirks

commit 333f31436d3db19f4286f8862a00ea1d8d8420a1 upstream.

Since the chained quirks via chained_before flag is applied before the
depth check, it may lead to the endless recursive calls, when the
chain were set up incorrectly.  Fix it by moving the depth check at
the beginning of the loop.

Fixes: 1f57825077dc ("ALSA: hda - Add chained_before flag to the fixup entry")
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
sound/pci/hda/hda_auto_parser.c