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In making the conversion to the new API, I fixed a couple bugs: virSCSIDeviceGetSgName would leak memory if a directory unexpectedly contained multiple entries; virNetDevTapGetRealDeviceName could report a spurious error from a stale errno inherited before starting the readdir search. The decision on whether to store the result of virDirRead into a variable is based on whether the end of the loop falls through to cleanup code automatically. In some cases, we have loops that are documented to return NULL on failure, and which raise an error on most failure paths but not in the case where the directory was unexpectedly empty; it may be worth a followup patch to explicitly report an error if readdir was successful but the directory was empty, so that a NULL return always has an error set. * src/util/vircgroup.c (virCgroupRemoveRecursively): Use new interface. (virCgroupKillRecursiveInternal, virCgroupSetOwner): Report readdir failures. * src/util/virfile.c (virFileLoopDeviceOpenSearch) (virFileNBDDeviceFindUnused, virFileDeleteTree): Use new interface. * src/util/virnetdevtap.c (virNetDevTapGetRealDeviceName): Properly check readdir errors. * src/util/virpci.c (virPCIDeviceIterDevices) (virPCIDeviceFileIterate, virPCIGetNetName): Report readdir failures. (virPCIDeviceAddressIOMMUGroupIterate): Use new interface. * src/util/virscsi.c (virSCSIDeviceGetSgName): Report readdir failures, and avoid memory leak. (virSCSIDeviceGetDevName): Report readdir failures. * src/util/virusb.c (virUSBDeviceSearch): Report readdir failures. * src/util/virutil.c (virGetFCHostNameByWWN) (virFindFCHostCapableVport): Report readdir failures. Signed-off-by: Eric Blake <eblake@redhat.com>
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>