[2.6 patch] drivers/bluetooth/bpa10x.c: fix memleak

From: Adrian Bunk
Date: Wed Oct 24 2007 - 12:46:14 EST


This patch fixea a memleak spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@xxxxxxxxxx>

---

drivers/bluetooth/bpa10x.c | 1 +
1 file changed, 1 insertion(+)

--- linux-2.6/drivers/bluetooth/bpa10x.c.old 2007-10-23 22:20:10.000000000 +0200
+++ linux-2.6/drivers/bluetooth/bpa10x.c 2007-10-23 22:22:01.000000000 +0200
@@ -378,96 +378,97 @@ static int bpa10x_send_frame(struct sk_b
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb)
return -ENOMEM;

/* Prepend skb with frame type */
*skb_push(skb, 1) = bt_cb(skb)->pkt_type;

switch (bt_cb(skb)->pkt_type) {
case HCI_COMMAND_PKT:
dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
if (!dr) {
usb_free_urb(urb);
return -ENOMEM;
}

dr->bRequestType = USB_TYPE_VENDOR;
dr->bRequest = 0;
dr->wIndex = 0;
dr->wValue = 0;
dr->wLength = __cpu_to_le16(skb->len);

pipe = usb_sndctrlpipe(data->udev, 0x00);

usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
skb->data, skb->len, bpa10x_tx_complete, skb);

hdev->stat.cmd_tx++;
break;

case HCI_ACLDATA_PKT:
pipe = usb_sndbulkpipe(data->udev, 0x02);

usb_fill_bulk_urb(urb, data->udev, pipe,
skb->data, skb->len, bpa10x_tx_complete, skb);

hdev->stat.acl_tx++;
break;

case HCI_SCODATA_PKT:
pipe = usb_sndbulkpipe(data->udev, 0x02);

usb_fill_bulk_urb(urb, data->udev, pipe,
skb->data, skb->len, bpa10x_tx_complete, skb);

hdev->stat.sco_tx++;
break;

default:
+ usb_free_urb(urb);
return -EILSEQ;
}

usb_anchor_urb(urb, &data->tx_anchor);

err = usb_submit_urb(urb, GFP_ATOMIC);
if (err < 0) {
BT_ERR("%s urb %p submission failed", hdev->name, urb);
kfree(urb->setup_packet);
usb_unanchor_urb(urb);
}

usb_free_urb(urb);

return 0;
}

static void bpa10x_destruct(struct hci_dev *hdev)
{
struct bpa10x_data *data = hdev->driver_data;

BT_DBG("%s", hdev->name);

kfree(data->rx_skb[0]);
kfree(data->rx_skb[1]);
kfree(data);
}

static int bpa10x_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct bpa10x_data *data;
struct hci_dev *hdev;
int err;

BT_DBG("intf %p id %p", intf, id);

if (ignore)
return -ENODEV;

if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
return -ENODEV;

data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;

data->udev = interface_to_usbdev(intf);


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