From 3e47ed10fd0099f5d47fb49cf2582112fd70a7e7 Mon Sep 17 00:00:00 2001
From: Marsman1996 <lqliuyuwei@outlook.com>
Date: Wed, 25 Dec 2024 21:00:15 +0800
Subject: [PATCH] Check name when `lookup_child` in `TaskDirOps`

---
 kernel/src/fs/procfs/pid/task.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kernel/src/fs/procfs/pid/task.rs b/kernel/src/fs/procfs/pid/task.rs
index 2f2c01d84..adcbdbf7c 100644
--- a/kernel/src/fs/procfs/pid/task.rs
+++ b/kernel/src/fs/procfs/pid/task.rs
@@ -63,8 +63,12 @@ impl DirOps for ThreadDirOps {
 
 impl DirOps for TaskDirOps {
     fn lookup_child(&self, this_ptr: Weak<dyn Inode>, name: &str) -> Result<Arc<dyn Inode>> {
+        let Ok(tid) = name.parse::<u32>() else {
+            return_errno_with_message!(Errno::ENOENT, "Can not parse name to u32 type");
+        };
+
         for task in self.0.tasks().lock().as_slice() {
-            if task.as_posix_thread().unwrap().tid() != name.parse::<u32>().unwrap() {
+            if task.as_posix_thread().unwrap().tid() != tid {
                 continue;
             }
             return Ok(ThreadDirOps::new_inode(self.0.clone(), this_ptr));