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authorClemens Ladisch <clemens@ladisch.de>2009-06-22 10:01:59 +0200
committerTakashi Iwai <tiwai@suse.de>2009-06-22 11:11:49 +0200
commit6423f9ea8035138d70bae1a278d3b57b743f8b3e (patch)
treeea367c24fdcac966da4f51b1cc678f995f19dcff /sound
parent07a2039b8eb0af4ff464efd3dfd95de5c02648c6 (diff)
downloadlinux-6423f9ea8035138d70bae1a278d3b57b743f8b3e.tar.bz2
sound: seq_midi_event: fix decoding of (N)RPN events
When decoding (N)RPN sequencer events into raw MIDI commands, the extra_decode_xrpn() function had accidentally swapped the MSB and LSB controller values of both the parameter number and the data value. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/core/seq/seq_midi_event.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/sound/core/seq/seq_midi_event.c b/sound/core/seq/seq_midi_event.c
index 8284f176a342..b5d6ea4904c0 100644
--- a/sound/core/seq/seq_midi_event.c
+++ b/sound/core/seq/seq_midi_event.c
@@ -504,10 +504,10 @@ static int extra_decode_xrpn(struct snd_midi_event *dev, unsigned char *buf,
if (dev->nostat && count < 12)
return -ENOMEM;
cmd = MIDI_CMD_CONTROL|(ev->data.control.channel & 0x0f);
- bytes[0] = ev->data.control.param & 0x007f;
- bytes[1] = (ev->data.control.param & 0x3f80) >> 7;
- bytes[2] = ev->data.control.value & 0x007f;
- bytes[3] = (ev->data.control.value & 0x3f80) >> 7;
+ bytes[0] = (ev->data.control.param & 0x3f80) >> 7;
+ bytes[1] = ev->data.control.param & 0x007f;
+ bytes[2] = (ev->data.control.value & 0x3f80) >> 7;
+ bytes[3] = ev->data.control.value & 0x007f;
if (cmd != dev->lastcmd && !dev->nostat) {
if (count < 9)
return -ENOMEM;