d.linegraph: Fix null pointer issue in qsort call (OSGeo#3878)

* Fix null pointer issue in qsort call in d.linegraph * Fix formatting issue in d.linegraph * Fixing formatting issue in d.linegraph --------- Co-authored-by: Shubham Vasudeo Desai <[email protected]>
pesekon2 · Jun 23, 2024 · 3f124c5 · 3f124c5
1 parent 3f30f1b
commit 3f124c5
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/display/d.linegraph/main.c b/display/d.linegraph/main.c
@@ -126,7 +126,9 @@ static char *icon_files(void)
 
     closedir(dir);
 
-    qsort(list, count, sizeof(char *), cmp);
+    if (list != NULL) {
+        qsort(list, count, sizeof(char *), cmp);
+    }
 
     if (len > 0) {
         ret = G_malloc((len + 1) * sizeof(char)); /* \0 */