diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 27760c19bad7..837348a2d669 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -622,7 +622,7 @@ static int check_hwpoisoned_pmd_entry(pmd_t *pmdp, unsigned long addr,
 static int hwpoison_pte_range(pmd_t *pmdp, unsigned long addr,
 			      unsigned long end, struct mm_walk *walk)
 {
-	struct hwp_walk *hwp = (struct hwp_walk *)walk->private;
+	struct hwp_walk *hwp = walk->private;
 	int ret = 0;
 	pte_t *ptep, *mapped_pte;
 	spinlock_t *ptl;
@@ -656,7 +656,7 @@ static int hwpoison_hugetlb_range(pte_t *ptep, unsigned long hmask,
 			    unsigned long addr, unsigned long end,
 			    struct mm_walk *walk)
 {
-	struct hwp_walk *hwp = (struct hwp_walk *)walk->private;
+	struct hwp_walk *hwp = walk->private;
 	pte_t pte = huge_ptep_get(ptep);
 	struct hstate *h = hstate_vma(walk->vma);