sound: seq_midi: do not send MIDI reset when closing

Sending a MIDI reset message when closing a port is wrong because we
only want to shut the device up, not to reset all settings.
Furthermore, many devices ignore this message.

Fortunately, the RawMIDI layer already shuts the device up, so we can
ignore this matter here.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/core/seq/seq_midi.c b/sound/core/seq/seq_midi.c
index 3810c52f652e2f99282174668b8d9eaca6964667..45cf5c144e3977f1c317c85852c6aa39cfa91610 100644 (file)
--- a/sound/core/seq/seq_midi.c
+++ b/sound/core/seq/seq_midi.c
@@ -249,12 +249,9 @@ static int midisynth_use(void *private_data, struct snd_seq_port_subscribe *info
 static int midisynth_unuse(void *private_data, struct snd_seq_port_subscribe *info)
 {
        struct seq_midisynth *msynth = private_data;
-       unsigned char buf = 0xff; /* MIDI reset */
 
        if (snd_BUG_ON(!msynth->output_rfile.output))
                return -EINVAL;
-       /* sending single MIDI reset message to shut the device up */
-       snd_rawmidi_kernel_write(msynth->output_rfile.output, &buf, 1);
        snd_rawmidi_drain_output(msynth->output_rfile.output);
        return snd_rawmidi_kernel_release(&msynth->output_rfile);
 }