common init_job_viewport: remove unnecessary 'junk' string allocation

diff --git a/lib/common/emit.c b/lib/common/emit.c
index d7687b13bee2adf10057f744c0cf3a173030e7c2..99ed362e921e79d55f5962e659eb29b642338683 100644 (file)
--- a/lib/common/emit.c
+++ b/lib/common/emit.c
@@ -3149,7 +3149,7 @@ static void init_job_viewport(GVJ_t * job, graph_t * g)
     double X, Y, Z, x, y;
     int rv;
     Agnode_t *n;
-    char *str, *nodename = NULL, *junk = NULL;
+    char *str, *nodename = NULL;
 
     UR = gvc->bb.UR;
     LL = gvc->bb.LL;
@@ -3187,7 +3187,6 @@ static void init_job_viewport(GVJ_t * job, graph_t * g)
     /* user can override */
     if ((str = agget(g, "viewport"))) {
         nodename = malloc(strlen(str)+1);
-        junk = malloc(strlen(str)+1);
        rv = sscanf(str, "%lf,%lf,%lf,\'%[^\']\'", &X, &Y, &Z, nodename);
        if (rv == 4) {
            n = agfindnode(g->root, nodename);
@@ -3197,7 +3196,8 @@ static void init_job_viewport(GVJ_t * job, graph_t * g)
            }
        }
        else {
-           rv = sscanf(str, "%lf,%lf,%lf,%[^,]%s", &X, &Y, &Z, nodename, junk);
+           char junk;
+           rv = sscanf(str, "%lf,%lf,%lf,%[^,]%c", &X, &Y, &Z, nodename, &junk);
            if (rv == 4) {
                 n = agfindnode(g->root, nodename);
                 if (n) {
@@ -3210,7 +3210,6 @@ static void init_job_viewport(GVJ_t * job, graph_t * g)
            }
         }
        free (nodename);
-       free (junk);
     }
     /* rv is ignored since args retain previous values if not scanned */