[ros-diffs] [janderwald] 55070: [USBHUB] - Check if there is device description buffer, as some usb devices don't provide one

[janderwald at svn.reactos.org]

Author: janderwald
Date: Sun Jan 22 14:51:32 2012
New Revision: 55070

URL: http://svn.reactos.org/svn/reactos?rev=55070&view=rev
Log:
[USBHUB]
- Check if there is device description buffer, as some usb devices don't provide one

Modified:
    branches/usb-bringup-trunk/drivers/usb/usbhub_new/pdo.c

Modified: branches/usb-bringup-trunk/drivers/usb/usbhub_new/pdo.c
URL: http://svn.reactos.org/svn/reactos/branches/usb-bringup-trunk/drivers/usb/usbhub_new/pdo.c?rev=55070&r1=55069&r2=55070&view=diff
==============================================================================
--- branches/usb-bringup-trunk/drivers/usb/usbhub_new/pdo.c [iso-8859-1] (original)
+++ branches/usb-bringup-trunk/drivers/usb/usbhub_new/pdo.c [iso-8859-1] Sun Jan 22 14:51:32 2012
@@ -429,7 +429,17 @@
         case DeviceTextLocationInformation:
         {
             DPRINT1("IRP_MJ_PNP / IRP_MN_QUERY_DEVICE_TEXT / DeviceTextDescription\n");
-            SourceString = &ChildDeviceExtension->usTextDescription;
+
+            //
+            // does the device provide a text description
+            //
+            if (ChildDeviceExtension->usTextDescription->Buffer && ChildDeviceExtension->usTextDescription->Length)
+            {
+                //
+                // use device text
+                //
+                SourceString = &ChildDeviceExtension->usTextDescription;
+            }
             break;
         }
         default: