Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

[cascardo/linux.git] / drivers / net / usb / cdc_ether.c

diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 3da70bf..7cba2c3 100644 (file)
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -160,6 +160,12 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
        info->u = header.usb_cdc_union_desc;
        info->header = header.usb_cdc_header_desc;
        info->ether = header.usb_cdc_ether_desc;
+       if (!info->u) {
+               if (rndis)
+                       goto skip;
+               else /* in that case a quirk is mandatory */
+                       goto bad_desc;
+       }
        /* we need a master/control interface (what we're
         * probed with) and a slave/data interface; union
         * descriptors sort this all out.
@@ -256,7 +262,7 @@ skip:
                        goto bad_desc;
                }
 
-       } else if (!info->header || !info->u || (!rndis && !info->ether)) {
+       } else if (!info->header || (!rndis && !info->ether)) {
                dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
                        info->header ? "" : "header ",
                        info->u ? "" : "union ",