Merge tag 'mvebu-fixes-3.18-2' of git://git.infradead.org/linux-mvebu into fixes

[pandora-kernel.git] / sound / usb / card.c

diff --git a/sound/usb/card.c b/sound/usb/card.c
index 7ecd0e8..f61ebb1 100644 (file)
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -591,18 +591,19 @@ static void snd_usb_audio_disconnect(struct usb_device *dev,
 {
        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_endpoint *ep;
 
                snd_card_disconnect(card);
@@ -622,6 +623,10 @@ static void snd_usb_audio_disconnect(struct usb_device *dev,
                list_for_each(p, &chip->mixer_list) {
                        snd_usb_mixer_disconnect(p);
                }
+       }
+
+       chip->num_interfaces--;
+       if (chip->num_interfaces <= 0) {
                usb_chip[chip->index] = NULL;
                mutex_unlock(&register_mutex);
                snd_card_free_when_closed(card);