[Xen-changelog] [xen-unstable] libxl: fix segfault on device assignement

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
# Date 1295979729 0
# Node ID 5429204f3c06d0acb7ef178f5bf225e32887e869
# Parent  1d1eec7e1fb4c8bc7be6873fcf235eeee90920c5
libxl: fix segfault on device assignement

Fix a xl/libxl segfault when assigning a device to the guest (bug
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1713).

Signed-off-by: Gianni Tedesco <gianni.tedesco@xxxxxxxxxx>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Committed-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---
 tools/libxl/libxl_pci.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -r 1d1eec7e1fb4 -r 5429204f3c06 tools/libxl/libxl_pci.c
--- a/tools/libxl/libxl_pci.c   Tue Jan 25 18:09:49 2011 +0000
+++ b/tools/libxl/libxl_pci.c   Tue Jan 25 18:22:09 2011 +0000
@@ -268,7 +268,7 @@ static int libxl_create_pci_backend(libx
     for (i = 0; i < num; i++, pcidev++)
         libxl_create_pci_backend_device(gc, back, i, pcidev);
 
-    flexarray_vappend(back, "num_devs", libxl__sprintf(gc, "%d", num));
+    flexarray_vappend(back, "num_devs", libxl__sprintf(gc, "%d", num), NULL);
 
     flexarray_vappend(front,
                       "backend-id", libxl__sprintf(gc, "%d", 0),

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