Wu Fengguang 5a9e02e949 ALSA: hda - create hda_codec.control_mutex for kcontrol->private_value
Fix the following lockdep warning by not reusing the hda_codec.spdif_mutex.

    ALSA sound/pci/hda/hda_codec.c:882: hda_codec_cleanup_stream: NID=0x2

    =======================================================
    [ INFO: possible circular locking dependency detected ]
    2.6.28-next-20090102 #33
    -------------------------------------------------------
    mplayer/3151 is trying to acquire lock:
     (&pcm->open_mutex){--..}, at: [<ffffffffa004ced3>] snd_pcm_release+0x43/0xd0 [snd_pcm]

    but task is already holding lock:
     (&mm->mmap_sem){----}, at: [<ffffffff810c0252>] sys_munmap+0x42/0x80

    which lock already depends on the new lock.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-01-09 09:58:47 +01:00
..
2008-12-25 11:40:24 +01:00
2008-12-13 09:12:07 +00:00
2008-09-04 10:33:55 +02:00
2008-05-27 15:56:20 +02:00
2008-09-06 11:43:41 +02:00
2008-01-31 17:29:48 +01:00