conf: Use virDomainChrSourceDefClear() rather than VIR_FREE()

Signed-off-by: NStefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/conf/domain_conf.c

@@ -2645,7 +2645,7 @@ void virDomainTPMDefFree(virDomainTPMDefPtr def)
 
     switch (def->type) {
     case VIR_DOMAIN_TPM_TYPE_PASSTHROUGH:
-        VIR_FREE(def->data.passthrough.source.data.file.path);
+        virDomainChrSourceDefClear(&def->data.passthrough.source);
         break;
     case VIR_DOMAIN_TPM_TYPE_EMULATOR:
         virDomainChrSourceDefClear(&def->data.emulator.source);