diff --git a/sound/pci/au88x0/au88x0_pcm.c b/sound/pci/au88x0/au88x0_pcm.c
index de95bd6d1ee1..38bd2b5dd434 100644
--- a/sound/pci/au88x0/au88x0_pcm.c
+++ b/sound/pci/au88x0/au88x0_pcm.c
@@ -220,8 +220,10 @@ snd_vortex_pcm_hw_params(snd_pcm_substream_t * substream,
 		    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. */
diff --git a/sound/synth/emux/emux_synth.c b/sound/synth/emux/emux_synth.c
index f13b038329eb..751bf1272af3 100644
--- a/sound/synth/emux/emux_synth.c
+++ b/sound/synth/emux/emux_synth.c
@@ -98,7 +98,6 @@ snd_emux_note_on(void *p, int note, int vel, snd_midi_channel_t *chan)
 		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);