Commit 0b664f72 authored Aug 10, 2007 by Clemens Ladisch Committed by Jaroslav Kysela Oct 16, 2007

[ALSA] seq_midi_event: prevent running status after system messages



Reset the event type after encoding a system message to prevent any
following data bytes from being interpreted as data for a running status
system message, which is not allowed in MIDI.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

parent 394d0516

sound/core/seq/seq_midi_event.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -283,6 +283,8 @@ int snd_midi_event_encode_byte(struct snd_midi_event *dev, int c,
		ev->flags \|= SNDRV_SEQ_EVENT_LENGTH_FIXED;
		if (status_event[dev->type].encode) /* set data values */
		status_event[dev->type].encode(dev, ev);
		if (dev->type >= ST_SPECIAL)
		dev->type = ST_INVALID;
		rc = 1;
		} else if (dev->type == ST_SYSEX) {
		if (c == MIDI_CMD_COMMON_SYSEX_END \|\|