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Diffstat (limited to 'sound/usb/midi.c')
-rw-r--r--sound/usb/midi.c25
1 files changed, 7 insertions, 18 deletions
diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index 34b9bb7fe87..8e01fa4991c 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);