kunmap_atomic() and kunmap() take different pointers. People often get
these mixed up.
Fixes: 16374db2e9a0 ("userfaultfd: hugetlbfs: fix __mcopy_atomic_hugetlb retry/error processing")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/mm/memory.c b/mm/memory.c
index 6012a05..dfd3604 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4172,7 +4172,7 @@ long copy_huge_page_from_user(struct page *dst_page,
(const void __user *)(src + i * PAGE_SIZE),
PAGE_SIZE);
if (allow_pagefault)
- kunmap(page_kaddr);
+ kunmap(dst_page + 1);
else
kunmap_atomic(page_kaddr);
--
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