[PATCH] ALSA: ump: Correct return size of fill_rpn()

[Takashi Iwai]

The RPN/NRPN conversion in fill_rpn() is supposed to return the number
of bytes of the resultant UMP packet, but it returns boolean values.
This would result in the incorrect ump_bytes in the converter, which
will confuse stream processing.  Correct to the right value 8 as a MIDI
2.0 UMP packet.

Fixes: e6ce8a28c768 ("ALSA: ump: Transmit RPN/NRPN message at each MSB/LSB data reception")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
 sound/core/ump_convert.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/ump_convert.c b/sound/core/ump_convert.c
index 85cc67de6330..0a7972d91ec5 100644
--- a/sound/core/ump_convert.c
+++ b/sound/core/ump_convert.c
@@ -323,7 +323,7 @@ static int fill_rpn(struct ump_cvt_to_ump_bank *cc,
 					      cc->cc_data_lsb);
 
 	reset_rpn(cc);
-	return 1;
+	return 8;
 }
 
 /* convert to a MIDI 1.0 Channel Voice message */
-- 
2.55.0