ALSA: firewire-tascam: code refactoring for release of isochronous resources

This commit is a part of preparation to perform allocation/release
of isochronous channels in pcm.hw_params/hw_free callbacks.

This commit obsoletes a helper function to release isochronous resources
for both direction.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/tascam/tascam-stream.c

@@ -269,13 +269,6 @@ static int begin_session(struct snd_tscm *tscm)
 				  &reg, sizeof(reg), 0);
 }
 
-static void release_resources(struct snd_tscm *tscm)
-{
-	// Release isochronous resources.
-	fw_iso_resources_free(&tscm->tx_resources);
-	fw_iso_resources_free(&tscm->rx_resources);
-}
-
 static int keep_resources(struct snd_tscm *tscm, unsigned int rate,
 			  struct amdtp_stream *stream)
 {
@@ -374,7 +367,8 @@ int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate)
 		amdtp_stream_stop(&tscm->rx_stream);
 		amdtp_stream_stop(&tscm->tx_stream);
 
-		release_resources(tscm);
+		fw_iso_resources_free(&tscm->tx_resources);
+		fw_iso_resources_free(&tscm->rx_resources);
 	}
 
 	if (!amdtp_stream_running(&tscm->rx_stream)) {
@@ -427,7 +421,9 @@ int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate)
 	amdtp_stream_stop(&tscm->tx_stream);
 
 	finish_session(tscm);
-	release_resources(tscm);
+
+	fw_iso_resources_free(&tscm->tx_resources);
+	fw_iso_resources_free(&tscm->rx_resources);
 
 	return err;
 }
@@ -441,7 +437,9 @@ void snd_tscm_stream_stop_duplex(struct snd_tscm *tscm)
 	amdtp_stream_stop(&tscm->rx_stream);
 
 	finish_session(tscm);
-	release_resources(tscm);
+
+	fw_iso_resources_free(&tscm->tx_resources);
+	fw_iso_resources_free(&tscm->rx_resources);
 }
 
 void snd_tscm_stream_lock_changed(struct snd_tscm *tscm)