From 01328ee4040930274dcd30725be7b223198c18cc Mon Sep 17 00:00:00 2001
From: Marsman1996 <lqliuyuwei@outlook.com>
Date: Fri, 6 Jun 2025 17:52:08 +0800
Subject: [PATCH] Fix panic when mount with invalid file system type

---
 kernel/src/syscall/mount.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/src/syscall/mount.rs b/kernel/src/syscall/mount.rs
index 58a53536..5c5a43c7 100644
--- a/kernel/src/syscall/mount.rs
+++ b/kernel/src/syscall/mount.rs
@@ -164,7 +164,9 @@ fn get_fs(
     let data = user_space.read_cstring(data, MAX_FILENAME_LEN)?;
     let data = data.to_string_lossy();
 
-    let fs_type = fs_type.to_str().unwrap();
+    let fs_type = fs_type
+        .to_str()
+        .map_err(|_| Error::with_message(Errno::ENODEV, "Invalid file system type"))?;
     match fs_type {
         "ext2" => {
             let device = aster_block::get_device(devname.to_str().unwrap()).ok_or(