ALSA: line6: Drop superfluous snd_device for rawmidi
Like the previous fix for PCM, attach the card-specific resource into
rawmidi->private_data instead of handling in a snd_device object.
This simplifies the code and structure.
Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/line6/midi.c b/sound/usb/line6/midi.c
index 2a42d53..ebca5eb 100644
--- a/sound/usb/line6/midi.c
+++ b/sound/usb/line6/midi.c
@@ -223,28 +223,20 @@
.trigger = line6_midi_input_trigger,
};
-/*
- Cleanup the Line6 MIDI device.
-*/
-static void line6_cleanup_midi(struct snd_rawmidi *rmidi)
-{
-}
-
/* Create a MIDI device */
-static int snd_line6_new_midi(struct snd_line6_midi *line6midi)
+static int snd_line6_new_midi(struct usb_line6 *line6,
+ struct snd_rawmidi **rmidi_ret)
{
struct snd_rawmidi *rmidi;
int err;
- err = snd_rawmidi_new(line6midi->line6->card, "Line6 MIDI", 0, 1, 1,
- &rmidi);
+ err = snd_rawmidi_new(line6->card, "Line6 MIDI", 0, 1, 1, rmidi_ret);
if (err < 0)
return err;
- rmidi->private_data = line6midi;
- rmidi->private_free = line6_cleanup_midi;
- strcpy(rmidi->id, line6midi->line6->properties->id);
- strcpy(rmidi->name, line6midi->line6->properties->name);
+ rmidi = *rmidi_ret;
+ strcpy(rmidi->id, line6->properties->id);
+ strcpy(rmidi->name, line6->properties->name);
rmidi->info_flags =
SNDRV_RAWMIDI_INFO_OUTPUT |
@@ -258,13 +250,13 @@
}
/* MIDI device destructor */
-static int snd_line6_midi_free(struct snd_device *device)
+static void snd_line6_midi_free(struct snd_rawmidi *rmidi)
{
- struct snd_line6_midi *line6midi = device->device_data;
+ struct snd_line6_midi *line6midi = rmidi->private_data;
line6_midibuf_destroy(&line6midi->midibuf_in);
line6_midibuf_destroy(&line6midi->midibuf_out);
- return 0;
+ kfree(line6midi);
}
/*
@@ -272,11 +264,8 @@
*/
int line6_init_midi(struct usb_line6 *line6)
{
- static struct snd_device_ops midi_ops = {
- .dev_free = snd_line6_midi_free,
- };
-
int err;
+ struct snd_rawmidi *rmidi;
struct snd_line6_midi *line6midi;
if (!(line6->properties->capabilities & LINE6_CAP_CONTROL)) {
@@ -284,39 +273,31 @@
return 0;
}
- line6midi = kzalloc(sizeof(struct snd_line6_midi), GFP_KERNEL);
+ err = snd_line6_new_midi(line6, &rmidi);
+ if (err < 0)
+ return err;
- if (line6midi == NULL)
+ line6midi = kzalloc(sizeof(struct snd_line6_midi), GFP_KERNEL);
+ if (!line6midi)
return -ENOMEM;
- err = line6_midibuf_init(&line6midi->midibuf_in, MIDI_BUFFER_SIZE, 0);
- if (err < 0) {
- kfree(line6midi);
- return err;
- }
-
- err = line6_midibuf_init(&line6midi->midibuf_out, MIDI_BUFFER_SIZE, 1);
- if (err < 0) {
- kfree(line6midi->midibuf_in.buf);
- kfree(line6midi);
- return err;
- }
-
- line6midi->line6 = line6;
- line6->line6midi = line6midi;
-
- err = snd_device_new(line6->card, SNDRV_DEV_RAWMIDI, line6midi,
- &midi_ops);
- if (err < 0)
- return err;
-
- err = snd_line6_new_midi(line6midi);
- if (err < 0)
- return err;
+ rmidi->private_data = line6midi;
+ rmidi->private_free = snd_line6_midi_free;
init_waitqueue_head(&line6midi->send_wait);
spin_lock_init(&line6midi->send_urb_lock);
spin_lock_init(&line6midi->midi_transmit_lock);
+ line6midi->line6 = line6;
+
+ err = line6_midibuf_init(&line6midi->midibuf_in, MIDI_BUFFER_SIZE, 0);
+ if (err < 0)
+ return err;
+
+ err = line6_midibuf_init(&line6midi->midibuf_out, MIDI_BUFFER_SIZE, 1);
+ if (err < 0)
+ return err;
+
+ line6->line6midi = line6midi;
return 0;
}
EXPORT_SYMBOL_GPL(line6_init_midi);