X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=src%2Flanguage%2Fstats%2Fgraph.c;h=da74afdef4e82c4eb8784bbb538b8757af8df3a1;hb=c84078d8498785e9a52945cc63fb663cd48027af;hp=65c03bbf79dc61985332b2f2123198a45d33a2ef;hpb=6eb8b4b61976de7a648fe8938ac5b6f5af58773c;p=pspp

diff --git a/src/language/stats/graph.c b/src/language/stats/graph.c
index 65c03bbf79..da74afdef4 100644
--- a/src/language/stats/graph.c
+++ b/src/language/stats/graph.c
@@ -245,6 +245,8 @@ parse_function (struct lexer *lexer, struct graph *graph)
       for (v = 0; v < ag_func[i].arity; ++v)
 	{
 	  graph->dep_vars[v] = parse_variable (lexer, graph->dict);
+	  if (! graph->dep_vars[v])
+	    goto error;
 	}
 
       if (!lex_force_match (lexer, T_RPAREN))