Clear out previous legend array contents before freeing legend array.

Problem could manifest under extreme resource limits.  Not tested.
-- Mike Slifcak

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@266 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/program/src/rrd_xport.c b/program/src/rrd_xport.c
index 488c24c3edbd057e005e2bf8c640544da6d9a549..c12b783bd07dce361f5b7f9045149a44db8052a0 100644 (file)
--- a/program/src/rrd_xport.c
+++ b/program/src/rrd_xport.c
@@ -376,8 +376,10 @@ rrd_xport_fn(image_desc_t *im,
          if ((legend_list[j] = malloc(sizeof(char) * (FMT_LEG_LEN+5)))==NULL) {
            free(srcptr_list);
            free(ref_list);
+           free(*data);  *data = NULL;
+           while (--j > -1) free(legend_list[j]);
            free(legend_list);
-           rrd_set_error("malloc xprint legend entry");
+           rrd_set_error("malloc xport legend entry");
            return(-1);
          }