From 7ce0547575e11cb9ce94f86fcce3709d060dcc00 Mon Sep 17 00:00:00 2001
From: heyuanjie87 <sc943313837@gmail.com>
Date: Thu, 17 Jan 2013 14:03:45 +0800
Subject: [PATCH] fixed the string descriptor send to host more than actual

---
 components/drivers/usb/usbdevice/core/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/drivers/usb/usbdevice/core/core.c b/components/drivers/usb/usbdevice/core/core.c
index ea4efde2d7..9f1738ed33 100644
--- a/components/drivers/usb/usbdevice/core/core.c
+++ b/components/drivers/usb/usbdevice/core/core.c
@@ -124,7 +124,7 @@ static rt_err_t _get_string_descriptor(struct udevice* device, ureq_t setup)
         }
     }
 
-    if(setup->length == 0xFF)
+    if(setup->length > len)
         len = str_desc.bLength;
     else
         len = setup->length;