Re: some missing spin_unlocks

[Takashi Iwai <tiwai@suse.de>]

At Wed, 24 Aug 2005 11:56:58 -0400,
Lee Revell wrote:
> 
> [added alsa-devel to cc:]
> 
> On Mon, 2005-08-22 at 15:26 -0700, Ted Unangst wrote:
> > I think these are all real bugs.
> > 
> > sound/synth/emux/emux_synth.c snd_emux_note_on, line 101
> > snd_assert will return without unlocking emu->voice_lock (line 89)
> 
> This one is probably a real bug.

The patch below fixes them (already applied to ALSA CVS tree).

================================================================

[PATCH] Fix missing spin_unlock

Fixed missing spin_unlock.

Signed-off-by: Takashi Iwai <tiwai@suse.de>


--- linux/sound/pci/au88x0/au88x0_pcm.c:1.9	Thu Aug 18 05:43:12 2005
+++ linux/sound/pci/au88x0/au88x0_pcm.c	Wed Aug 24 09:57:25 2005
@@ -220,8 +220,10 @@
 		    vortex_adb_allocroute(chip, -1,
 					  params_channels(hw_params),
 					  substream->stream, type);
-		if (dma < 0)
+		if (dma < 0) {
+			spin_unlock_irq(&chip->lock);
 			return dma;
+		}
 		stream = substream->runtime->private_data = &chip->dma_adb[dma];
 		stream->substream = substream;
 		/* Setup Buffers. */
--- linux/sound/synth/emux/emux_synth.c:1.11	Tue Dec  7 07:36:07 2004
+++ linux/sound/synth/emux/emux_synth.c	Wed Aug 24 09:57:25 2005
@@ -98,7 +98,6 @@
 		vp = emu->ops.get_voice(emu, port);
 		if (vp == NULL || vp->ch < 0)
 			continue;
-		snd_assert(vp->emu != NULL && vp->hw != NULL, return);
 		if (STATE_IS_PLAYING(vp->state))
 			emu->ops.terminate(vp);