References: bsc#989679

Subject: libxl: fix libxl_device_usbdev_list()
From: Juergen Gross jgross@suse.com Fri Sep 2 10:16:14 2016 +0200
Date: Fri Sep 2 09:54:42 2016 +0100:
Git: 74157a2f9886b55cd45714e58c80035bfe3e080c

Commit 03814de1d2ecdabedabceb8e728d934a632a43b9 ("libxl: Do not trust
frontend for vusb") introduced an error in libxl_device_usbdev_list().
Fix it.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>

Index: xen-4.7.0-testing/tools/libxl/libxl_pvusb.c
===================================================================
--- xen-4.7.0-testing.orig/tools/libxl/libxl_pvusb.c
+++ xen-4.7.0-testing/tools/libxl/libxl_pvusb.c
@@ -732,7 +732,7 @@ libxl_device_usbdev_list(libxl_ctx *ctx,
     *num = 0;
 
     libxl_vusbs_path = GCSPRINTF("%s/device/vusb",
-                                 libxl__xs_libxl_path(gc, !domid));
+                                 libxl__xs_libxl_path(gc, domid));
     usbctrls = libxl__xs_directory(gc, XBT_NULL, libxl_vusbs_path, &nc);
 
     for (i = 0; i < nc; i++) {