From 951fd8ee6a9493f80bc5bccf2c8cfa1535c6ce15 Mon Sep 17 00:00:00 2001
From: Ming Lei <tom.leiming@gmail.com>
Date: Mon, 2 Aug 2010 22:09:17 +0800
Subject: USB: usbtest: support test device with only one iso-in or iso-out
 endpoint

It is very common that one altsetting may include only one iso-in or iso-out
single endpoint, especially for high bandwidth endpoint, so support it.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/misc/usbtest.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'drivers/usb/misc')

diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index d92b7ec..eef370e 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -136,7 +136,7 @@ try_iso:
 					iso_out = e;
 			}
 		}
-		if ((in && out)  ||  (iso_in && iso_out))
+		if ((in && out)  ||  iso_in || iso_out)
 			goto found;
 	}
 	return -EINVAL;
@@ -162,6 +162,9 @@ found:
 		dev->in_iso_pipe = usb_rcvisocpipe (udev,
 				iso_in->desc.bEndpointAddress
 					& USB_ENDPOINT_NUMBER_MASK);
+	}
+
+	if (iso_out) {
 		dev->iso_out = &iso_out->desc;
 		dev->out_iso_pipe = usb_sndisocpipe (udev,
 				iso_out->desc.bEndpointAddress
-- 
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