1. 09 Jan, 2009 1 commit
    • Wu Fengguang's avatar
      ALSA: hda - create hda_codec.control_mutex for kcontrol->private_value · 5a9e02e9
      Wu Fengguang authored
      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: default avatarWu Fengguang <fengguang.wu@intel.com>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      5a9e02e9
  2. 08 Jan, 2009 2 commits
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