summaryrefslogtreecommitdiff
path: root/sound/usb
diff options
context:
space:
mode:
authorTakashi Iwai <tiwai@suse.de>2012-11-19 21:25:27 +0100
committerTakashi Iwai <tiwai@suse.de>2012-11-19 21:25:27 +0100
commit87af0b80c933f05a4c7dd8c5edebe10365e76220 (patch)
tree6c33ab1a47b5f1ef196e8847586fb81b17152a0e /sound/usb
parent08a978db518dfceb37998bc74a7fed03540cfd08 (diff)
parent2ea3c6a2c779e5a6487d2b436770232162dfbbe3 (diff)
Merge branch 'for-linus' into for-next
Merge the recent HD-audio codec change for fixing recursive suspend calls. Conflicts: sound/pci/hda/hda_codec.c
Diffstat (limited to 'sound/usb')
-rw-r--r--sound/usb/card.c6
-rw-r--r--sound/usb/midi.c8
2 files changed, 9 insertions, 5 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 282f0fc9fed1..dbf7999d18b4 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -559,9 +559,11 @@ static void snd_usb_audio_disconnect(struct usb_device *dev,
return;
card = chip->card;
- mutex_lock(&register_mutex);
down_write(&chip->shutdown_rwsem);
chip->shutdown = 1;
+ up_write(&chip->shutdown_rwsem);
+
+ mutex_lock(&register_mutex);
chip->num_interfaces--;
if (chip->num_interfaces <= 0) {
snd_card_disconnect(card);
@@ -582,11 +584,9 @@ static void snd_usb_audio_disconnect(struct usb_device *dev,
snd_usb_mixer_disconnect(p);
}
usb_chip[chip->index] = NULL;
- up_write(&chip->shutdown_rwsem);
mutex_unlock(&register_mutex);
snd_card_free_when_closed(card);
} else {
- up_write(&chip->shutdown_rwsem);
mutex_unlock(&register_mutex);
}
}
diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index c83f6143c0eb..eeefbce3873c 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -148,6 +148,7 @@ struct snd_usb_midi_out_endpoint {
struct snd_usb_midi_out_endpoint* ep;
struct snd_rawmidi_substream *substream;
int active;
+ bool autopm_reference;
uint8_t cable; /* cable number << 4 */
uint8_t state;
#define STATE_UNKNOWN 0
@@ -1076,7 +1077,8 @@ static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream)
return -ENXIO;
}
err = usb_autopm_get_interface(umidi->iface);
- if (err < 0)
+ port->autopm_reference = err >= 0;
+ if (err < 0 && err != -EACCES)
return -EIO;
substream->runtime->private_data = port;
port->state = STATE_UNKNOWN;
@@ -1087,9 +1089,11 @@ static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream)
static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream)
{
struct snd_usb_midi* umidi = substream->rmidi->private_data;
+ struct usbmidi_out_port *port = substream->runtime->private_data;
substream_open(substream, 0);
- usb_autopm_put_interface(umidi->iface);
+ if (port->autopm_reference)
+ usb_autopm_put_interface(umidi->iface);
return 0;
}