1 files changed, 12 insertions, 6 deletions
diff --git a/cpukit/libmisc/shell/shell_cmdset.c b/cpukit/libmisc/shell/shell_cmdset.c
index be64b83fe4..89a6aeb32b 100644
--- a/cpukit/libmisc/shell/shell_cmdset.c
+++ b/cpukit/libmisc/shell/shell_cmdset.c
@@ -1,10 +1,11 @@
+/**
+ * @file
+ * 
+ * @brief Shell Command Set Management
+ */
+
 /*
- *
- *  Shell Command Set Management
- *
- *  Author:
- *   WORK: fernando.ruiz@ctv.es
- *   HOME: correo@fernando-ruiz.com
+ * Copyright (c) 2001 Fernando Ruiz Casas <fruizcasas@gmail.com>
  *
  *  The license and distribution terms for this file may be
  *  found in the file LICENSE in this distribution or at
@@ -112,6 +113,11 @@ rtems_shell_cmd_t *rtems_shell_add_cmd_struct(
   rtems_shell_cmd_t **next_ptr = &rtems_shell_first_cmd;
   rtems_shell_cmd_t *existing;
 
+  if (shell_cmd == NULL)
+    return NULL;
+  if (shell_cmd->name == NULL)
+    return NULL;
+
   /*
    * Iterate through all commands and check if a command with this name is
    * already present.