uas: Verify endpoint descriptors from uas_use_uas_driver()
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
diff --git a/drivers/usb/storage/uas-detect.h b/drivers/usb/storage/uas-detect.h
index 8de030a..b8a02e1 100644
--- a/drivers/usb/storage/uas-detect.h
+++ b/drivers/usb/storage/uas-detect.h
@@ -70,13 +70,23 @@
static int uas_use_uas_driver(struct usb_interface *intf,
const struct usb_device_id *id)
{
+ struct usb_host_endpoint *eps[4] = { };
struct usb_device *udev = interface_to_usbdev(intf);
unsigned long flags = id->driver_info;
+ int r, alt;
usb_stor_adjust_quirks(udev, &flags);
if (flags & US_FL_IGNORE_UAS)
return 0;
- return uas_find_uas_alt_setting(intf) >= 0;
+ alt = uas_find_uas_alt_setting(intf);
+ if (alt < 0)
+ return 0;
+
+ r = uas_find_endpoints(&intf->altsetting[alt], eps);
+ if (r < 0)
+ return 0;
+
+ return 1;
}