From 618c38245f16f09ab8d72d51225b905fde80b8db Mon Sep 17 00:00:00 2001
From: Alexander Larsson <alexl@redhat.com>
Date: Tue, 3 Sep 2019 16:02:25 +0200
Subject: [PATCH] OCI: Don't crash on mirroring an OCI repo without annotations

If we're using labels the annotations hashtable may be NULL, which
was causing a crash. Just do an early check.

Closes: #2978
Approved by: alexlarsson
---
 common/flatpak-json-oci.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/common/flatpak-json-oci.c b/common/flatpak-json-oci.c
index feef1eaf8..1a90df000 100644
--- a/common/flatpak-json-oci.c
+++ b/common/flatpak-json-oci.c
@@ -744,6 +744,9 @@ flatpak_oci_export_annotations (GHashTable *source,
   };
   int i;
 
+  if (source == NULL)
+    return;
+
   for (i = 0; i < G_N_ELEMENTS (keys); i++)
     {
       const char *key = keys[i];