Fix snapshots

Change-Id: Ib3891704ece2cea0c5a80b468b2514e6c4d13216
diff --git a/savevm.c b/savevm.c
index 5da7a8c..c08e8fa 100644
--- a/savevm.c
+++ b/savevm.c
@@ -1121,7 +1121,11 @@
             le->next = first_le;
             first_le = le;
 
-            le->se->load_state(f, le->se->opaque, le->version_id);
+            if (le->se->load_state(f, le->se->opaque, le->version_id)) {
+                fprintf(stderr, "savevm: unable to load section %s\n", idstr);
+                ret = -EINVAL;
+                goto out;
+            }
             break;
         case QEMU_VM_SECTION_PART:
         case QEMU_VM_SECTION_END: