diff options
| author | Clemens Ladisch <clemens@ladisch.de> | 2005-07-21 08:01:22 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2005-07-28 12:22:34 +0200 |
| commit | d06e4c4001cf26147a6af0718703368944f0df32 (patch) | |
| tree | 292c421927434fab4a5e6017b6b842b633d6e51b /sound/core | |
| parent | 7858ffa062886706026cfff3ba80b8400b520501 (diff) | |
| download | lwn-d06e4c4001cf26147a6af0718703368944f0df32.tar.gz lwn-d06e4c4001cf26147a6af0718703368944f0df32.zip | |
[ALSA] seq-midi - silently ignore non-MIDI events
ALSA sequencer
When non-MIDI sequencer events are sent to a RawMIDI port, silently
ignore them instead of returning a confusing error code which may upset
the sequencer and abort the current write() to /dev/snd/seq.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'sound/core')
| -rw-r--r-- | sound/core/seq/seq_midi.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/sound/core/seq/seq_midi.c b/sound/core/seq/seq_midi.c index 57be9155eb62..4374829ea770 100644 --- a/sound/core/seq/seq_midi.c +++ b/sound/core/seq/seq_midi.c @@ -134,7 +134,7 @@ static int event_process_midi(snd_seq_event_t * ev, int direct, seq_midisynth_t *msynth = (seq_midisynth_t *) private_data; unsigned char msg[10]; /* buffer for constructing midi messages */ snd_rawmidi_substream_t *substream; - int res; + int len; snd_assert(msynth != NULL, return -EINVAL); substream = msynth->output_rfile.output; @@ -146,20 +146,16 @@ static int event_process_midi(snd_seq_event_t * ev, int direct, snd_printd("seq_midi: invalid sysex event flags = 0x%x\n", ev->flags); return 0; } - res = snd_seq_dump_var_event(ev, (snd_seq_dump_func_t)dump_midi, substream); + snd_seq_dump_var_event(ev, (snd_seq_dump_func_t)dump_midi, substream); snd_midi_event_reset_decode(msynth->parser); - if (res < 0) - return res; } else { if (msynth->parser == NULL) return -EIO; - res = snd_midi_event_decode(msynth->parser, msg, sizeof(msg), ev); - if (res < 0) - return res; - if ((res = dump_midi(substream, msg, res)) < 0) { + len = snd_midi_event_decode(msynth->parser, msg, sizeof(msg), ev); + if (len < 0) + return 0; + if (dump_midi(substream, msg, len) < 0) snd_midi_event_reset_decode(msynth->parser); - return res; - } } return 0; } |