USBDEVFS_URB_ISO_ASAP must be accepted only for ISO endpoints.
Improve sanity checking.
Reported-by: NAndrey Konovalov <andreyknvl@google.com>
Signed-off-by: NOliver Neukum <oneukum@suse.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>