From cc6a069586974fc305ff3d5c1d24cd90a72df242 Mon Sep 17 00:00:00 2001
From: WangRunji <wangrunji0408@163.com>
Date: Thu, 21 Mar 2019 00:37:54 +0800
Subject: [PATCH] fix split absolute path

---
 kernel/src/syscall/fs.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/src/syscall/fs.rs b/kernel/src/syscall/fs.rs
index 378ffac..6f4f46f 100644
--- a/kernel/src/syscall/fs.rs
+++ b/kernel/src/syscall/fs.rs
@@ -616,7 +616,10 @@ impl Process {
 fn split_path(path: &str) -> (&str, &str) {
     let mut split = path.trim_end_matches('/').rsplitn(2, '/');
     let file_name = split.next().unwrap();
-    let dir_path = split.next().unwrap_or(".");
+    let mut dir_path = split.next().unwrap_or(".");
+    if dir_path == "" {
+        dir_path = "/";
+    }
     (dir_path, file_name)
 }