qemu: domain: update only newly detected images in qemuDomainDetermineDiskChain

The processing code which prepares images should be executed really only
for the images which were detected. The code actually tried to update
the last user-specified layer as well. Thankfully we don't do anything
that would be a problem at this point.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 8c22b17c1ffa025b240d88d9d2935d6909eaab93..3915c8e2dd118b8f3863f3166a3ad4773536cdec 100644 (file)
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -8403,7 +8403,7 @@ qemuDomainDetermineDiskChain(virQEMUDriverPtr driver,
     if (virStorageFileGetMetadata(src, uid, gid, report_broken) < 0)
         goto cleanup;
 
-    for (n = src; virStorageSourceIsBacking(n); n = n->backingStore) {
+    for (n = src->backingStore; virStorageSourceIsBacking(n); n = n->backingStore) {
         if (qemuDomainValidateStorageSource(n, priv->qemuCaps) < 0)
             goto cleanup;