diff options
Diffstat (limited to 'drivers/usb/core/driver.c')
| -rw-r--r-- | drivers/usb/core/driver.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 6b5063e7943f..56593a9a8726 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -296,6 +296,10 @@ static int usb_probe_interface(struct device *dev) if (udev->authorized == 0) { dev_err(&intf->dev, "Device is not authorized for usage\n"); return error; + } else if (intf->authorized == 0) { + dev_err(&intf->dev, "Interface %d is not authorized for usage\n", + intf->altsetting->desc.bInterfaceNumber); + return error; } id = usb_match_dynamic_id(intf, driver); @@ -417,12 +421,10 @@ static int usb_unbind_interface(struct device *dev) if (ep->streams == 0) continue; if (j == 0) { - eps = kmalloc(USB_MAXENDPOINTS * sizeof(void *), + eps = kmalloc_array(USB_MAXENDPOINTS, sizeof(void *), GFP_KERNEL); - if (!eps) { - dev_warn(dev, "oom, leaking streams\n"); + if (!eps) break; - } } eps[j++] = ep; } @@ -508,6 +510,10 @@ int usb_driver_claim_interface(struct usb_driver *driver, if (dev->driver) return -EBUSY; + /* reject claim if interface is not authorized */ + if (!iface->authorized) + return -ENODEV; + udev = interface_to_usbdev(iface); dev->driver = &driver->drvwrap.driver; |