ALSA: ump: Update legacy substream names upon FB info update

The legacy rawmidi substreams should be updated when UMP FB Info or
UMP FB Name are received, too.

Link: https://patch.msgid.link/20241129094546.32119-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/core/ump.c

@@ -37,6 +37,7 @@ static int process_legacy_output(struct snd_ump_endpoint *ump,
 				 u32 *buffer, int count);
 static void process_legacy_input(struct snd_ump_endpoint *ump, const u32 *src,
 				 int words);
+static void update_legacy_names(struct snd_ump_endpoint *ump);
 #else
 static inline int process_legacy_output(struct snd_ump_endpoint *ump,
 					u32 *buffer, int count)
@@ -47,6 +48,9 @@ static inline void process_legacy_input(struct snd_ump_endpoint *ump,
 					const u32 *src, int words)
 {
 }
+static inline void update_legacy_names(struct snd_ump_endpoint *ump)
+{
+}
 #endif
 
 static const struct snd_rawmidi_global_ops snd_ump_rawmidi_ops = {
@@ -861,6 +865,7 @@ static int ump_handle_fb_info_msg(struct snd_ump_endpoint *ump,
 		fill_fb_info(ump, &fb->info, buf);
 		if (ump->parsed) {
 			snd_ump_update_group_attrs(ump);
+			update_legacy_names(ump);
 			seq_notify_fb_change(ump, fb);
 		}
 	}
@@ -893,6 +898,7 @@ static int ump_handle_fb_name_msg(struct snd_ump_endpoint *ump,
 	/* notify the FB name update to sequencer, too */
 	if (ret > 0 && ump->parsed) {
 		snd_ump_update_group_attrs(ump);
+		update_legacy_names(ump);
 		seq_notify_fb_change(ump, fb);
 	}
 	return ret;
@@ -1262,6 +1268,14 @@ static void fill_substream_names(struct snd_ump_endpoint *ump,
 	}
 }
 
+static void update_legacy_names(struct snd_ump_endpoint *ump)
+{
+	struct snd_rawmidi *rmidi = ump->legacy_rmidi;
+
+	fill_substream_names(ump, rmidi, SNDRV_RAWMIDI_STREAM_INPUT);
+	fill_substream_names(ump, rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT);
+}
+
 int snd_ump_attach_legacy_rawmidi(struct snd_ump_endpoint *ump,
 				  char *id, int device)
 {
@@ -1298,10 +1312,7 @@ int snd_ump_attach_legacy_rawmidi(struct snd_ump_endpoint *ump,
 	rmidi->ops = &snd_ump_legacy_ops;
 	rmidi->private_data = ump;
 	ump->legacy_rmidi = rmidi;
-	if (input)
-		fill_substream_names(ump, rmidi, SNDRV_RAWMIDI_STREAM_INPUT);
-	if (output)
-		fill_substream_names(ump, rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT);
+	update_legacy_names(ump);
 
 	ump_dbg(ump, "Created a legacy rawmidi #%d (%s)\n", device, id);
 	return 0;