From 189daa2e09eb8c8a1be8afde8cde953ed34e800b Mon Sep 17 00:00:00 2001
From: Qingsong Chen <changxian.cqs@antgroup.com>
Date: Wed, 21 May 2025 04:34:15 +0000
Subject: [PATCH] Fix the return value of `read_link` for ext2

---
 kernel/src/fs/ext2/inode.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/src/fs/ext2/inode.rs b/kernel/src/fs/ext2/inode.rs
index ffc8c2c84..aebcabba8 100644
--- a/kernel/src/fs/ext2/inode.rs
+++ b/kernel/src/fs/ext2/inode.rs
@@ -651,7 +651,7 @@ impl Inode {
 
     pub fn read_link(&self) -> Result<String> {
         if self.type_ != InodeType::SymLink {
-            return_errno!(Errno::EISDIR);
+            return_errno_with_message!(Errno::EINVAL, "self is not symlink");
         }
 
         let inner = self.inner.read();