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qemu: block commit: Don't overwrite error when rolling back disk labels

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Calls to qemuDomainDiskChainElementPrepare resets the original error,
thus we need to save it in the cleanup path of qemuDomainBlockCommit.
This commit is contained in:
Peter Krempa 2017-06-20 12:18:34 +02:00
parent 3488f449a6
commit c885b7fe1d
1 changed files with 6 additions and 0 deletions
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6
src/qemu/qemu_driver.c
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@ -17270,10 +17270,16 @@ qemuDomainBlockCommit(virDomainPtr dom,
endjob:
if (ret < 0 && clean_access) {
virErrorPtr orig_err = virSaveLastError();
/* Revert access to read-only, if possible. */
qemuDomainDiskChainElementPrepare(driver, vm, baseSource, true);
if (top_parent && top_parent != disk->src)
qemuDomainDiskChainElementPrepare(driver, vm, top_parent, true);
if (orig_err) {
virSetError(orig_err);
virFreeError(orig_err);
}
}
virStorageSourceFree(mirror);
qemuDomainObjEndJob(driver, vm);