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1019bf1445
Commit 'ef2ab8fd' moved just the virDomainConfNWFilterTeardown and left the logic to save/restore the current error essentially doing nothing in the error path for qemuBuildCommandLine. So move it to where it was meant to be. Although the original code would reset the filter on command creation errors after building the network command portion and commit 'ef2ab8fd' altered that logic, the teardown is called during qemuProcessStop from virDomainConfVMNWFilterTeardown and that code has the save/restore last error logic, so just allow that code to handle the teardown rather than running it twice. The qemuProcessStop would be called in the failure path of qemuBuildCommandLine.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>