lib: Check var_expand_long return value correctly

diff --git a/src/lib/var-expand.c b/src/lib/var-expand.c
index 9ee098dff479188c8fb880295437fa94e9ea7377..2ba8ebc853bfaaa74bce9c3e89460731696a16f4 100644 (file)
--- a/src/lib/var-expand.c
+++ b/src/lib/var-expand.c
@@ -217,6 +217,7 @@ var_expand_hash(const struct var_expand_table *table,
        const char *const *args = NULL;
        const char *algo = key;
        const char *value;
+       int ret;
 
        if (p != NULL) {
                algo = t_strcut(key, ';');
@@ -234,9 +235,9 @@ var_expand_hash(const struct var_expand_table *table,
        string_t *salt = t_str_new(64);
        string_t *tmp = t_str_new(method->digest_size);
 
-       if (var_expand_long(table, func_table, field, strlen(field),
-                           context, &value, error_r) < 0)
-               return -1;
+       if ((ret = var_expand_long(table, func_table, field, strlen(field),
+                                  context, &value, error_r)) < 1)
+               return ret;
 
        str_append(field_value, value);