diff options
Diffstat (limited to 'sound/usb/card.c')
| -rw-r--r-- | sound/usb/card.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c index 1d5a65eac933..270dad84d825 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -891,10 +891,16 @@ get_alias_quirk(struct usb_device *dev, unsigned int id) */ static int try_to_register_card(struct snd_usb_audio *chip, int ifnum) { + struct usb_interface *iface; + if (check_delayed_register_option(chip) == ifnum || - chip->last_iface == ifnum || - usb_interface_claimed(usb_ifnum_to_if(chip->dev, chip->last_iface))) + chip->last_iface == ifnum) + return snd_card_register(chip->card); + + iface = usb_ifnum_to_if(chip->dev, chip->last_iface); + if (iface && usb_interface_claimed(iface)) return snd_card_register(chip->card); + return 0; } |