mm/gup.c: fix the comment of return value for populate_vma_page_range()

The return value of populate_vma_page_range() is consistent with __get_user_pages(), and so is the function comment of return value. Signed-off-by: Tang Yizhou <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Ira Weiny <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
berg · Aug 7, 2020 · 0a36f7f · 0a36f7f
1 parent 605cad8
commit 0a36f7f
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/mm/gup.c b/mm/gup.c
@@ -1404,7 +1404,8 @@ static __always_inline long __get_user_pages_locked(struct task_struct *tsk,
  *
  * This takes care of mlocking the pages too if VM_LOCKED is set.
  *
- * return 0 on success, negative error code on error.
+ * Return either number of pages pinned in the vma, or a negative error
+ * code on error.
  *
  * vma->vm_mm->mmap_lock must be held.
  *