[PATCH] ALSA: seq: Fix missing channel at encoding RPN/NRPN MIDI2 messages

[Takashi Iwai <tiwai@suse.de>]

The conversion from the legacy event to MIDI2 UMP for RPN and NRPN
missed the setup of the channel number, resulting in always the
channel 0.  Fix it.

Fixes: e9e02819a98a ("ALSA: seq: Automatic conversion of UMP events")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/seq/seq_ump_convert.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sound/core/seq/seq_ump_convert.c b/sound/core/seq/seq_ump_convert.c
index d81f776a4c3d..6687efdceea1 100644
--- a/sound/core/seq/seq_ump_convert.c
+++ b/sound/core/seq/seq_ump_convert.c
@@ -791,7 +791,8 @@ static int paf_ev_to_ump_midi2(const struct snd_seq_event *event,
 
 /* set up the MIDI2 RPN/NRPN packet data from the parsed info */
 static void fill_rpn(struct snd_seq_ump_midi2_bank *cc,
-		     union snd_ump_midi2_msg *data)
+		     union snd_ump_midi2_msg *data,
+		     unsigned char channel)
 {
 	if (cc->rpn_set) {
 		data->rpn.status = UMP_MSG_STATUS_RPN;
@@ -808,6 +809,7 @@ static void fill_rpn(struct snd_seq_ump_midi2_bank *cc,
 	}
 	data->rpn.data = upscale_14_to_32bit((cc->cc_data_msb << 7) |
 					     cc->cc_data_lsb);
+	data->rpn.channel = channel;
 	cc->cc_data_msb = cc->cc_data_lsb = 0;
 }
 
@@ -855,7 +857,7 @@ static int cc_ev_to_ump_midi2(const struct snd_seq_event *event,
 		cc->cc_data_lsb = val;
 		if (!(cc->rpn_set || cc->nrpn_set))
 			return 0; // skip
-		fill_rpn(cc, data);
+		fill_rpn(cc, data, channel);
 		return 1;
 	}
 
@@ -957,7 +959,7 @@ static int ctrl14_ev_to_ump_midi2(const struct snd_seq_event *event,
 		cc->cc_data_lsb = lsb;
 		if (!(cc->rpn_set || cc->nrpn_set))
 			return 0; // skip
-		fill_rpn(cc, data);
+		fill_rpn(cc, data, channel);
 		return 1;
 	}
 
-- 
2.43.0