util: prevent calling close() on negative descriptor

Coverity IDs: 398341, 398338
canonical · Aug 15, 2023 · 244504b · 244504b
1 parent 397288f
commit 244504b
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/util.c b/src/util.c
@@ -388,12 +388,12 @@ netplan_util_dump_yaml_subtree(const char* prefix, int input_fd, int output_fd,
 cleanup:
     if (input)
         fclose(input);
-    else
+    else if (in_dup >= 0)
         close(in_dup);
 
     if (output)
         fclose(output);
-    else
+    else if (out_dup >= 0)
         close(out_dup);
 
     if (yaml_path)