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qemu: migration: Make check for empty hook XML robust

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Also consider whitespace only strings returned from the hook as empty
result.

(cherry picked from commit 19b1ee42b49b2764f7df23787f4b6022886a612c)
This commit is contained in:
Peter Krempa 2014-10-22 11:27:36 +02:00 committed by Cole Robinson
parent 3d52d5e6d5
commit a70d93e226
1 changed files with 1 additions and 1 deletions
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src/qemu/qemu_migration.c
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@ -2570,7 +2570,7 @@ qemuMigrationPrepareAny(virQEMUDriverPtr driver,
if (hookret < 0) {
goto cleanup;
} else if (hookret == 0) {
if (!*xmlout) {
if (virStringIsEmpty(xmlout)) {
VIR_DEBUG("Migrate hook filter returned nothing; using the"
" original XML");
} else {