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ALSA: hda - Fix broken reconfig 

The HD-audio reconfig function got broken in the recent kernels,
typically resulting in a failure like:
  snd_hda_intel 0000:00:1b.0: control 3:0:0:Playback Channel Map:0 is already present

This is because of the code restructuring to move the PCM and control
instantiation into the codec drive probe, by the commit [bcd96557bd0a:
ALSA: hda - Build PCMs and controls at codec driver probe].  Although
the commit above removed the calls of snd_hda_codec_build_pcms() and
*_build_controls() at the controller driver probe, the similar calls
in the reconfig were still left forgotten.  This caused the
conflicting and duplicated PCMs and controls.

The fix is trivial: just remove these superfluous calls from
reconfig_codec().

Fixes: bcd96557bd ('ALSA: hda - Build PCMs and controls at codec driver probe')
Reported-by: Jochen Henneberg <jh@henneberg-systemdesign.com>
Cc: <stable@vger.kernel.org> # v4.1+
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2016-05-10 10:24:02 +02:00
parent 2da2dc9ead
commit addacd801e
1 changed files with 0 additions and 8 deletions
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8
sound/pci/hda/hda_sysfs.c
View File

@ -139,14 +139,6 @@ static int reconfig_codec(struct hda_codec *codec)
goto error; goto error;
} }
err = snd_hda_codec_configure(codec); err = snd_hda_codec_configure(codec);
if (err < 0)
goto error;
/* rebuild PCMs */
err = snd_hda_codec_build_pcms(codec);
if (err < 0)
goto error;
/* rebuild mixers */
err = snd_hda_codec_build_controls(codec);
if (err < 0) if (err < 0)
goto error; goto error;
err = snd_card_register(codec->card); err = snd_card_register(codec->card);