aboutsummaryrefslogtreecommitdiff
path: root/sound/usb/usx2y/usbusx2y.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/usb/usx2y/usbusx2y.c')
-rw-r--r--sound/usb/usx2y/usbusx2y.c45
1 files changed, 28 insertions, 17 deletions
diff --git a/sound/usb/usx2y/usbusx2y.c b/sound/usb/usx2y/usbusx2y.c
index b848a180638..af8b8495405 100644
--- a/sound/usb/usx2y/usbusx2y.c
+++ b/sound/usb/usx2y/usbusx2y.c
@@ -333,7 +333,7 @@ static struct usb_device_id snd_usX2Y_usb_id_table[] = {
{ /* terminator */ }
};
-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;
@@ -343,11 +343,11 @@ static struct snd_card *usX2Y_create_card(struct usb_device *device)
if (enable[dev] && !snd_usX2Y_card_used[dev])
break;
if (dev >= SNDRV_CARDS)
- return NULL;
+ return -ENODEV;
err = snd_card_create(index[dev], id[dev], THIS_MODULE,
sizeof(struct usX2Ydev), &card);
if (err < 0)
- return NULL;
+ return err;
snd_usX2Y_card_used[usX2Y(card)->chip.index = dev] = 1;
card->private_free = snd_usX2Y_card_private_free;
usX2Y(card)->chip.dev = device;
@@ -365,26 +365,36 @@ static struct snd_card *usX2Y_create_card(struct usb_device *device)
usX2Y(card)->chip.dev->bus->busnum, usX2Y(card)->chip.dev->devnum
);
snd_card_set_dev(card, &device->dev);
- return card;
+ *cardp = card;
+ return 0;
}
-static void *usX2Y_usb_probe(struct usb_device *device, struct usb_interface *intf, const struct usb_device_id *device_id)
+static int usX2Y_usb_probe(struct usb_device *device,
+ struct usb_interface *intf,
+ const struct usb_device_id *device_id,
+ struct snd_card **cardp)
{
int err;
struct snd_card * card;
+
+ *cardp = NULL;
if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 ||
(le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 &&
le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 &&
- le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428) ||
- !(card = usX2Y_create_card(device)))
- return NULL;
+ le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428))
+ return -EINVAL;
+
+ err = usX2Y_create_card(device, &card);
+ if (err < 0)
+ return err;
if ((err = usX2Y_hwdep_new(card, device)) < 0 ||
(err = snd_card_register(card)) < 0) {
snd_card_free(card);
- return NULL;
+ return err;
}
- return card;
+ *cardp = card;
+ return 0;
}
/*
@@ -392,13 +402,14 @@ static void *usX2Y_usb_probe(struct usb_device *device, struct usb_interface *in
*/
static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
- void *chip;
- chip = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id);
- if (chip) {
- usb_set_intfdata(intf, chip);
- return 0;
- } else
- return -EIO;
+ struct snd_card *card;
+ int err;
+
+ err = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id, &card);
+ if (err < 0)
+ return err;
+ dev_set_drvdata(&intf->dev, card);
+ return 0;
}
static void snd_usX2Y_disconnect(struct usb_interface *intf)