diff options
Diffstat (limited to 'sound/usb/midi.c')
| -rw-r--r-- | sound/usb/midi.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/sound/usb/midi.c b/sound/usb/midi.c index 34b9bb7fe87c..8e01fa4991c5 100644 --- a/sound/usb/midi.c +++ b/sound/usb/midi.c @@ -126,7 +126,6 @@ struct snd_usb_midi { struct snd_usb_midi_in_endpoint *in; } endpoints[MIDI_MAX_ENDPOINTS]; unsigned long input_triggered; - bool autopm_reference; unsigned int opened[2]; unsigned char disconnected; unsigned char input_running; @@ -1040,7 +1039,6 @@ static int substream_open(struct snd_rawmidi_substream *substream, int dir, { struct snd_usb_midi* umidi = substream->rmidi->private_data; struct snd_kcontrol *ctl; - int err; down_read(&umidi->disc_rwsem); if (umidi->disconnected) { @@ -1051,13 +1049,6 @@ static int substream_open(struct snd_rawmidi_substream *substream, int dir, mutex_lock(&umidi->mutex); if (open) { if (!umidi->opened[0] && !umidi->opened[1]) { - err = usb_autopm_get_interface(umidi->iface); - umidi->autopm_reference = err >= 0; - if (err < 0 && err != -EACCES) { - mutex_unlock(&umidi->mutex); - up_read(&umidi->disc_rwsem); - return -EIO; - } if (umidi->roland_load_ctl) { ctl = umidi->roland_load_ctl; ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE; @@ -1080,8 +1071,6 @@ static int substream_open(struct snd_rawmidi_substream *substream, int dir, snd_ctl_notify(umidi->card, SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); } - if (umidi->autopm_reference) - usb_autopm_put_interface(umidi->iface); } } mutex_unlock(&umidi->mutex); @@ -1455,6 +1444,7 @@ void snd_usbmidi_disconnect(struct list_head* p) } del_timer_sync(&umidi->error_timer); } +EXPORT_SYMBOL(snd_usbmidi_disconnect); static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi) { @@ -1465,10 +1455,9 @@ static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi) static struct snd_rawmidi_substream *snd_usbmidi_find_substream(struct snd_usb_midi* umidi, int stream, int number) { - struct list_head* list; + struct snd_rawmidi_substream *substream; - list_for_each(list, &umidi->rmidi->streams[stream].substreams) { - struct snd_rawmidi_substream *substream = list_entry(list, struct snd_rawmidi_substream, list); + list_for_each_entry(substream, &umidi->rmidi->streams[stream].substreams, list) { if (substream->number == number) return substream; } @@ -2091,6 +2080,7 @@ void snd_usbmidi_input_stop(struct list_head* p) } umidi->input_running = 0; } +EXPORT_SYMBOL(snd_usbmidi_input_stop); static void snd_usbmidi_input_start_ep(struct snd_usb_midi_in_endpoint* ep) { @@ -2120,6 +2110,7 @@ void snd_usbmidi_input_start(struct list_head* p) snd_usbmidi_input_start_ep(umidi->endpoints[i].in); umidi->input_running = 1; } +EXPORT_SYMBOL(snd_usbmidi_input_start); /* * Creates and registers everything needed for a MIDI streaming interface. @@ -2256,11 +2247,9 @@ int snd_usbmidi_create(struct snd_card *card, return err; } + usb_autopm_get_interface_no_resume(umidi->iface); + list_add_tail(&umidi->list, midi_list); return 0; } - EXPORT_SYMBOL(snd_usbmidi_create); -EXPORT_SYMBOL(snd_usbmidi_input_stop); -EXPORT_SYMBOL(snd_usbmidi_input_start); -EXPORT_SYMBOL(snd_usbmidi_disconnect); |