[Xen-devel] [PATCH] libxl: fix segfault on device assignement

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

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>

diff -r b05892ff0fce tools/libxl/libxl_pci.c
--- a/tools/libxl/libxl_pci.c   Tue Jan 25 15:14:52 2011 +0000
+++ b/tools/libxl/libxl_pci.c   Tue Jan 25 15:34:43 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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