linux-kernel - [PATCH -next] mm/hugetlb: stop using 0 as NULL pointer

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Message-Id: <20221121102037.75307-1-yang.lee@linux.alibaba.com>
Date:   Mon, 21 Nov 2022 18:20:37 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     mike.kravetz@...cle.com
Cc:     songmuchun@...edance.com, akpm@...ux-foundation.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Yang Li <yang.lee@...ux.alibaba.com>,
        Abaci Robot <abaci@...ux.alibaba.com>
Subject: [PATCH -next] mm/hugetlb: stop using 0 as NULL pointer

mm/hugetlb.c:1531:37: warning: Using plain integer as NULL pointer

Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3224
Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---
 mm/hugetlb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 222937d512c4..b6c2fc882f21 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1528,7 +1528,7 @@ static void add_hugetlb_folio(struct hstate *h, struct folio *folio,
 	}
 
 	folio_set_compound_dtor(folio, HUGETLB_PAGE_DTOR);
-	folio_change_private(folio, 0);
+	folio_change_private(folio, NULL);
 	/*
 	 * We have to set HPageVmemmapOptimized again as above
 	 * folio_change_private(folio, 0) cleared it.
-- 
2.20.1.7.g153144c