diff options
Diffstat (limited to 'sound/usb/usx2y/us122l.c')
-rw-r--r-- | sound/usb/usx2y/us122l.c | 59 |
1 files changed, 36 insertions, 23 deletions
diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c index 73e59f4..98276aa 100644 --- a/sound/usb/usx2y/us122l.c +++ b/sound/usb/usx2y/us122l.c @@ -478,19 +478,21 @@ static bool us122l_create_card(struct snd_card *card) return true; } -static struct snd_card *usx2y_create_card(struct usb_device *device) +static int usx2y_create_card(struct usb_device *device, struct snd_card **cardp) { int dev; struct snd_card *card; + int err; + for (dev = 0; dev < SNDRV_CARDS; ++dev) if (enable[dev] && !snd_us122l_card_used[dev]) break; if (dev >= SNDRV_CARDS) - return NULL; - card = snd_card_new(index[dev], id[dev], THIS_MODULE, - sizeof(struct us122l)); - if (!card) - return NULL; + return -ENODEV; + err = snd_card_create(index[dev], id[dev], THIS_MODULE, + sizeof(struct us122l), &card); + if (err < 0) + return err; snd_us122l_card_used[US122L(card)->chip.index = dev] = 1; US122L(card)->chip.dev = device; @@ -509,46 +511,57 @@ static struct snd_card *usx2y_create_card(struct usb_device *device) US122L(card)->chip.dev->devnum ); snd_card_set_dev(card, &device->dev); - return card; + *cardp = card; + return 0; } -static void *us122l_usb_probe(struct usb_interface *intf, - const struct usb_device_id *device_id) +static int us122l_usb_probe(struct usb_interface *intf, + const struct usb_device_id *device_id, + struct snd_card **cardp) { struct usb_device *device = interface_to_usbdev(intf); - struct snd_card *card = usx2y_create_card(device); + struct snd_card *card; + int err; - if (!card) - return NULL; + err = usx2y_create_card(device, &card); + if (err < 0) + return err; - if (!us122l_create_card(card) || - snd_card_register(card) < 0) { + if (!us122l_create_card(card)) { snd_card_free(card); - return NULL; + return -EINVAL; + } + + err = snd_card_register(card); + if (err < 0) { + snd_card_free(card); + return err; } usb_get_dev(device); - return card; + *cardp = card; + return 0; } static int snd_us122l_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct snd_card *card; + int err; + snd_printdd(KERN_DEBUG"%p:%i\n", intf, intf->cur_altsetting->desc.bInterfaceNumber); if (intf->cur_altsetting->desc.bInterfaceNumber != 1) return 0; - card = us122l_usb_probe(usb_get_intf(intf), id); - - if (card) { - usb_set_intfdata(intf, card); - return 0; + err = us122l_usb_probe(usb_get_intf(intf), id, &card); + if (err < 0) { + usb_put_intf(intf); + return err; } - usb_put_intf(intf); - return -EIO; + usb_set_intfdata(intf, card); + return 0; } static void snd_us122l_disconnect(struct usb_interface *intf) |