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authorTakashi Iwai <tiwai@suse.de>2014-11-05 15:37:22 +0100
committerTakashi Iwai <tiwai@suse.de>2014-11-05 15:37:22 +0100
commit19566b0bd93c34e4941822ed3c0d76a5abddcf82 (patch)
tree7e1894610584133feb4ee6e08bb3e05eb3d6acc1 /sound/usb/card.c
parent9161bd0d1cf375492f0a6aa86b3e4c28b070fb7c (diff)
parent0725dda207e95ff25f1aa01432250323e0ec49d6 (diff)
Merge branch 'for-linus' into for-next
This merges the USB-audio disconnect fix and resolves the conflicts so that we can continue working on development of usb-audio stuff. Conflicts: sound/usb/card.c
Diffstat (limited to 'sound/usb/card.c')
-rw-r--r--sound/usb/card.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 69725d5fa2d..1fab9778807 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -585,18 +585,19 @@ static void usb_audio_disconnect(struct usb_interface *intf)
struct snd_usb_audio *chip = usb_get_intfdata(intf);
struct snd_card *card;
struct list_head *p;
+ bool was_shutdown;
if (chip == (void *)-1L)
return;
card = chip->card;
down_write(&chip->shutdown_rwsem);
+ was_shutdown = chip->shutdown;
chip->shutdown = 1;
up_write(&chip->shutdown_rwsem);
mutex_lock(&register_mutex);
- chip->num_interfaces--;
- if (chip->num_interfaces <= 0) {
+ if (!was_shutdown) {
struct snd_usb_stream *as;
struct snd_usb_endpoint *ep;
struct usb_mixer_interface *mixer;
@@ -618,6 +619,10 @@ static void usb_audio_disconnect(struct usb_interface *intf)
list_for_each_entry(mixer, &chip->mixer_list, list) {
snd_usb_mixer_disconnect(mixer);
}
+ }
+
+ chip->num_interfaces--;
+ if (chip->num_interfaces <= 0) {
usb_chip[chip->index] = NULL;
mutex_unlock(&register_mutex);
snd_card_free_when_closed(card);