lib: hash_table_iterate_deinit(NULL) should be a no-op

diff --git a/src/lib/hash.c b/src/lib/hash.c
index 57b44421fe9d2b12fef3318a1fbce3539ab41f91..967921ca80abadd904498e3364816ea215466cde 100644 (file)
--- a/src/lib/hash.c
+++ b/src/lib/hash.c
@@ -420,6 +420,9 @@ void hash_table_iterate_deinit(struct hash_iterate_context **_ctx)
 {
        struct hash_iterate_context *ctx = *_ctx;
 
+       if (ctx == NULL)
+               return;
+
        *_ctx = NULL;
        hash_table_thaw(ctx->table);
        i_free(ctx);