[libvirt] [PATCH] Fix libxl driver startup

When you happen to have a libvirtd binary compiled with the libxenlight driver (say you have installed xen-4.1 libraries) but not running a xen enabled system, then libvirtd fails to start. The cause is that libxlStartup() returns -1 when failing to initialize the library, and this propagates to virStateInitialize() which consider this a failure. We should only exit libxlStartup with an error code if something like an allocation error occurs, not if the driver failed to initialize. Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/