[libvirt] [PATCH 23/35] qemu: domain: Tolerate NULL 'cfg' in qemuDomainPrepareDiskSourceChain

[Peter Krempa]

The function will be reused in the test code where we don't care much
that the gluster debug level can't be populated from the qemu config.

Set the level only when 'cfg' is passed.

Signed-off-by: Peter Krempa <pkrempa at redhat.com>
---
 src/qemu/qemu_domain.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 079655de87..564e4e7957 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -11881,7 +11881,8 @@ qemuDomainPrepareDiskSourceChain(virDomainDiskDefPtr disk,
     src->detect_zeroes = disk->detect_zeroes;

     for (n = src; virStorageSourceIsBacking(n); n = n->backingStore) {
-        if (n->type == VIR_STORAGE_TYPE_NETWORK &&
+        if (cfg &&
+            n->type == VIR_STORAGE_TYPE_NETWORK &&
             n->protocol == VIR_STORAGE_NET_PROTOCOL_GLUSTER &&
             virQEMUCapsGet(qemuCaps, QEMU_CAPS_GLUSTER_DEBUG_LEVEL)) {
             n->debug = true;
-- 
2.16.2