[gtk/fix-large-compose-file: 1/2] composetable: Add a missing NULL check

[Matthias Clasen <matthiasc src gnome org>]

commit 5df314fa8f4ae6703876ed82bac340cce0495141
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 2 15:39:03 2022 +0800

    composetable: Add a missing NULL check
    
    gtk_compose_table_parse can return NULL. Handle it.

 gtk/gtkcomposetable.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/gtk/gtkcomposetable.c b/gtk/gtkcomposetable.c
index 7951b04c4d..4ec357fc97 100644
--- a/gtk/gtkcomposetable.c
+++ b/gtk/gtkcomposetable.c
@@ -1150,7 +1150,8 @@ parse:
    * is probably a copy of the system one, we take steps to keep things working,
    * and thell the user about it.
    */
-  if (found_old_cache && !found_include && compose_table->n_sequences < 100)
+  if (found_old_cache && !found_include &&
+      compose_table != NULL && compose_table->n_sequences < 100)
     {
       if (rewrite_compose_file (compose_file))
         {