The first kfree(pDevice) is pointless because pDevice is NULL. The
second kfree(pDevice) is a double free because pDevice is the driver's
private data and that is already freed by free_netdev(netdev). Also the
free_netdev() error path doesn't call usb_put_dev().
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index c528ef0..4fdf837 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -771,10 +771,9 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
udev = usb_get_dev(udev);
netdev = alloc_etherdev(sizeof(DEVICE_INFO));
-
if (!netdev) {
printk(KERN_ERR DEVICE_NAME ": allocate net device failed\n");
- kfree(pDevice);
+ rc = -ENOMEM;
goto err_nomem;
}
@@ -800,9 +799,7 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
rc = register_netdev(netdev);
if (rc) {
printk(KERN_ERR DEVICE_NAME " Failed to register netdev\n");
- free_netdev(netdev);
- kfree(pDevice);
- return -ENODEV;
+ goto err_netdev;
}
usb_device_reset(pDevice);
@@ -820,10 +817,12 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
return 0;
+err_netdev:
+ free_netdev(netdev);
err_nomem:
usb_put_dev(udev);
- return -ENOMEM;
+ return rc;
}
static void device_free_tx_bufs(PSDevice pDevice)
--
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