[libvirt] [libvirt-designer][PATCH 2/4] Cleanup double error setting and operating on empty list

[Michal Privoznik]

and virtio disks can be advertised as PCI bus devices.
---
 libvirt-designer/libvirt-designer-domain.c |   15 ++++++++++++---
 1 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/libvirt-designer/libvirt-designer-domain.c b/libvirt-designer/libvirt-designer-domain.c
index 0411da4..4046d8c 100644
--- a/libvirt-designer/libvirt-designer-domain.c
+++ b/libvirt-designer/libvirt-designer-domain.c
@@ -688,6 +688,9 @@ gvir_designer_domain_get_supported_disk_bus_types(GVirDesignerDomain *design)
 
     dev_list = osinfo_os_get_devices_by_property(priv->os, "class", "block", TRUE);
 
+    if (!dev_list)
+        goto cleanup;
+
     for (i = 0; i < osinfo_list_get_length(OSINFO_LIST(dev_list)); i++) {
         OsinfoDevice *dev = OSINFO_DEVICE(osinfo_list_get_nth(OSINFO_LIST(dev_list), i));
         const gchar *bus = osinfo_device_get_bus_type(dev);
@@ -699,6 +702,7 @@ gvir_designer_domain_get_supported_disk_bus_types(GVirDesignerDomain *design)
     ret = g_hash_table_get_keys(bus_hash);
     ret = g_list_copy(ret);
 
+cleanup:
     g_hash_table_destroy(bus_hash);
     return ret;
 }
@@ -811,18 +815,23 @@ gvir_designer_domain_add_disk_full(GVirDesignerDomain *design,
             goto error;
 
         item = g_list_first(bus_str_list);
-        bus_str_list = item->data;
+        bus_str = item->data;
+        if (!bus_str)
+            goto error;
     }
 
+    g_clear_error(error);
 
     disk = gvir_config_domain_disk_new();
     gvir_config_domain_disk_set_type(disk, type);
     gvir_config_domain_disk_set_source(disk, path);
     gvir_config_domain_disk_set_driver_name(disk, "qemu");
-    gvir_config_domain_disk_set_driver_type(disk, format);
+    if (format)
+        gvir_config_domain_disk_set_driver_type(disk, format);
     if (g_str_equal(bus_str, "ide")) {
         bus = GVIR_CONFIG_DOMAIN_DISK_BUS_IDE;
-    } else if (g_str_equal(bus_str, "virtio")) {
+    } else if (g_str_equal(bus_str, "virtio") ||
+               g_str_equal(bus_str, "pci")) {
         bus = GVIR_CONFIG_DOMAIN_DISK_BUS_VIRTIO;
     } else if (g_str_equal(bus_str, "sata")) {
         bus = GVIR_CONFIG_DOMAIN_DISK_BUS_SATA;
-- 
1.7.8.6