virStorageSourceInitChainElement initializes a new storage chain element for use as a new disk source. If the new element doesn't contain the driver name, copy it from the old source. This fixes issue where a disk would forget the driver after a snapshot. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1140984 --- src/util/virstoragefile.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c index 13056a7..960aa23 100644 --- a/src/util/virstoragefile.c +++ b/src/util/virstoragefile.c @@ -1927,6 +1927,10 @@ virStorageSourceInitChainElement(virStorageSourcePtr newelem, virStorageSourceSeclabelsCopy(newelem, old) < 0) goto cleanup; + if (!newelem->driverName && + VIR_STRDUP(newelem->driverName, old->driverName) < 0) + goto cleanup; + newelem->shared = old->shared; newelem->readonly = old->readonly; -- 2.1.0