From aaa68d2f295147a7b648bbab632557c7429fb8cd Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 19 Jan 2015 14:50:31 +0100 Subject: [PATCH] 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 Signed-off-by: Takashi Iwai --- sound/usb/line6/midi.c | 65 +++++++++++++++--------------------------- 1 file changed, 23 insertions(+), 42 deletions(-) diff --git a/sound/usb/line6/midi.c b/sound/usb/line6/midi.c index 2a42d533f49c..ebca5ebcfecc 100644 --- a/sound/usb/line6/midi.c +++ b/sound/usb/line6/midi.c @@ -223,28 +223,20 @@ static struct snd_rawmidi_ops line6_midi_input_ops = { .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 @@ static int snd_line6_new_midi(struct snd_line6_midi *line6midi) } /* 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 @@ static int snd_line6_midi_free(struct snd_device *device) */ 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 @@ int line6_init_midi(struct usb_line6 *line6) 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; - } + 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; - line6->line6midi = line6midi; - err = snd_device_new(line6->card, SNDRV_DEV_RAWMIDI, line6midi, - &midi_ops); + err = line6_midibuf_init(&line6midi->midibuf_in, MIDI_BUFFER_SIZE, 0); if (err < 0) return err; - err = snd_line6_new_midi(line6midi); + err = line6_midibuf_init(&line6midi->midibuf_out, MIDI_BUFFER_SIZE, 1); if (err < 0) return err; - init_waitqueue_head(&line6midi->send_wait); - spin_lock_init(&line6midi->send_urb_lock); - spin_lock_init(&line6midi->midi_transmit_lock); + line6->line6midi = line6midi; return 0; } EXPORT_SYMBOL_GPL(line6_init_midi); -- 2.20.1