From d0b98130cf73efbcd10d47662c79a8836545434d Mon Sep 17 00:00:00 2001
From: Zhang Junyang <junyang@stu.pku.edu.cn>
Date: Tue, 12 Aug 2025 17:35:59 +0800
Subject: [PATCH] Don't use `map` to return values

---
 ostd/src/mm/vm_space.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/ostd/src/mm/vm_space.rs b/ostd/src/mm/vm_space.rs
index bf19b24d7..40ecc817a 100644
--- a/ostd/src/mm/vm_space.rs
+++ b/ostd/src/mm/vm_space.rs
@@ -90,7 +90,7 @@ impl VmSpace {
         guard: &'a G,
         va: &Range<Vaddr>,
     ) -> Result<Cursor<'a>> {
-        Ok(self.pt.cursor(guard, va).map(Cursor)?)
+        Ok(Cursor(self.pt.cursor(guard, va)?))
     }
 
     /// Gets an mutable cursor in the virtual address range.
@@ -108,10 +108,10 @@ impl VmSpace {
         guard: &'a G,
         va: &Range<Vaddr>,
     ) -> Result<CursorMut<'a>> {
-        Ok(self.pt.cursor_mut(guard, va).map(|pt_cursor| CursorMut {
-            pt_cursor,
+        Ok(CursorMut {
+            pt_cursor: self.pt.cursor_mut(guard, va)?,
             flusher: TlbFlusher::new(&self.cpus, disable_preempt()),
-        })?)
+        })
     }
 
     /// Activates the page table on the current CPU.