Martin Kletzander 8370023730 qemu: Report error if per-VM directory cannot be created
Commit f1f68ca33433 did not report an error if virFileMakePath()
returned -1.  Well, who would've guessed function with name starting
with 'vir' sets an errno instead of reporting an error the libvirt way.
Anyway, let's fix it, so the output changes from:

  $ virsh start arm
  error: Failed to start domain arm
  error: An error occurred, but the cause is unknown

to:

  $ virsh start arm
  error: Failed to start domain arm
  error: Cannot create directory '/var/lib/libvirt/qemu/domain-arm': Not
  a directory

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1146886

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-09-09 13:38:18 +02:00
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         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>
Description
Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.
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