msh: check path is non-null in msh_auto_complete_path

2014-10-14 16:07:19 +08:00 · 2014-10-14 16:07:19 +08:00 · 23cc390474
parent 8615e2c8e5
commit 23cc390474
1 changed files with 3 additions and 0 deletions
--- a/components/finsh/msh.c
+++ b/components/finsh/msh.c
@ -358,6 +358,9 @@ void msh_auto_complete_path(char *path)
    struct dirent *dirent = RT_NULL;
    char *full_path, *ptr, *index;

+    if (!path)
+        return;
+
    full_path = (char*)rt_malloc(256);
    if (full_path == RT_NULL) return; /* out of memory */