From 1c8e37f63d413a559825020289178d442537449e Mon Sep 17 00:00:00 2001
From: Richard Qin <richard.qin.x@gmail.com>
Date: Fri, 2 Jan 2026 10:09:37 +0800
Subject: dev(sell): add simple libc and implement shell please see the log for
 detail.

---
 src/fs/fs.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/fs/fs.cc')

diff --git a/src/fs/fs.cc b/src/fs/fs.cc
index b2b91c2..c5a34ee 100644
--- a/src/fs/fs.cc
+++ b/src/fs/fs.cc
@@ -111,8 +111,10 @@ namespace VFS
         ip->lock.release();
     }
 
-    static void iunlockput(Inode *ip)
+    void iunlockput(Inode *ip)
     {
+        if (!ip)
+            return;
         iunlock(ip);
         iput(ip);
     }
-- 
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