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-rw-r--r--drivers/net/usb/cdc_ether.c16
-rw-r--r--drivers/net/usb/rndis_host.c1
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 5a21f06bf8a5..675ac99a79c6 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -91,6 +91,22 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
"CDC descriptors on config\n");
}
+ /* Maybe CDC descriptors are after the endpoint? This bug has
+ * been seen on some 2Wire Inc RNDIS-ish products.
+ */
+ if (len == 0) {
+ struct usb_host_endpoint *hep;
+
+ hep = intf->cur_altsetting->endpoint;
+ if (hep) {
+ buf = hep->extra;
+ len = hep->extralen;
+ }
+ if (len)
+ dev_dbg(&intf->dev,
+ "CDC descriptors on endpoint\n");
+ }
+
/* this assumes that if there's a non-RNDIS vendor variant
* of cdc-acm, it'll fail RNDIS requests cleanly.
*/
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index 980e4aaa97aa..cd991a0f75bb 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -515,6 +515,7 @@ static int rndis_bind(struct usbnet *dev, struct usb_interface *intf)
dev_err(&intf->dev,
"dev can't take %u byte packets (max %u)\n",
dev->hard_mtu, tmp);
+ retval = -EINVAL;
goto fail_and_release;
}