ALSA: hda: ext: remove always-true conditions on host and link release

By construction a host and link DMA are always decoupled. This
decoupling happens in the assign() phase. There's no point in checking
if the two parts are decoupled, this is by-design always-true.

Signed-off-by: Pierre-Louis Bossart <[e-mail]>
Reviewed-by: Bard Liao <[e-mail]>
Reviewed-by: Péter Ujfalusi <[e-mail]>
Reviewed-by: Kai Vehmanen <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Takashi Iwai <[e-mail]>

sound/hda/ext/hdac_ext_stream.c

···
 
 	case HDAC_EXT_STREAM_TYPE_HOST:
 		spin_lock_irq(&bus->reg_lock);
-		if (hext_stream->decoupled && !hext_stream->link_locked)
+		/* couple link only if not in use */
+		if (!hext_stream->link_locked)
 			snd_hdac_ext_stream_decouple_locked(bus, hext_stream, false);
 		snd_hdac_stream_release_locked(&hext_stream->hstream);
 		spin_unlock_irq(&bus->reg_lock);
···
 
 	case HDAC_EXT_STREAM_TYPE_LINK:
 		spin_lock_irq(&bus->reg_lock);
-		if (hext_stream->decoupled && !hext_stream->hstream.opened)
+		/* couple host only if not in use */
+		if (!hext_stream->hstream.opened)
 			snd_hdac_ext_stream_decouple_locked(bus, hext_stream, false);
 		hext_stream->link_locked = 0;
 		hext_stream->link_substream = NULL;