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Laine Stump
ae3d31bf4f
One error exit in virStorageBackendCreateBlockFrom was setting the return value to errno. The convention for volume build functions is to return 0 on success or -1 on failure. Not only was it not necessary to set the return value (it defaults to -1, and is set to 0 when everything has been successfully completed), in the case that some caller were checking for < 0 rather than != 0, they would incorrectly believe that it completed successfully.
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>