From 472b91274a6c6857877b5caddb875dcb5ecdfcb8 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Fri, 13 May 2011 16:53:48 +0300 Subject: [PATCH] usb: gadget: rndis: don't test against req->length composite.c always sets req->length to zero and expects function driver's setup handlers to return the amount of bytes to be used on req->length. If we test against req->length w_length will always be greater than req->length thus making us always stall that particular SEND_ENCAPSULATED_COMMAND request. Tested against a Windows XP SP3. Signed-off-by: Felipe Balbi Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/f_rndis.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 882484a4039..fa12ec8364e 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -420,8 +420,7 @@ rndis_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) */ case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8) | USB_CDC_SEND_ENCAPSULATED_COMMAND: - if (w_length > req->length || w_value - || w_index != rndis->ctrl_id) + if (w_value || w_index != rndis->ctrl_id) goto invalid; /* read the request; process it later */ value = w_length; -- 2.39.5