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ee67069c73
Found by inspection - after calling virStoragePoolObjAssignDef the pool is part of the driver->pools.objs list and the failure path for the virStoragePoolObjSaveDef will use virStoragePoolObjRemove to remove the pool from the objs list which will unlock and free the pool pointer (as pools->objs[i] during the loop). Since the call doesn't clear the pool address from the callee, we need to set it to NULL; otherwise, the virStoragePoolObjUnlock in the cleanup: code will fail miserably.
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>