linux-kernel - [PATCH -next 3/3] ocfs2: Replaced simple

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Message-ID: <20210526092020.554341-3-chenhuang5@huawei.com>
Date:   Wed, 26 May 2021 09:20:20 +0000
From:   Chen Huang <chenhuang5@...wei.com>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        "Boris Ostrovsky" <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Mark Fasheh <mark@...heh.com>,
        Joel Becker <jlbec@...lplan.org>,
        Joseph Qi <joseph.qi@...ux.alibaba.com>,
        Nathan Lynch <nathanl@...ux.ibm.com>,
        Andrew Donnellan <ajd@...ux.ibm.com>,
        Alexey Kardashevskiy <aik@...abs.ru>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        "Jens Axboe" <axboe@...nel.dk>,
        Yang Yingliang <yangyingliang@...wei.com>,
        "Masahiro Yamada" <masahiroy@...nel.org>,
        Dan Carpenter <dan.carpenter@...cle.com>
CC:     <linuxppc-dev@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
        <xen-devel@...ts.xenproject.org>, <ocfs2-devel@....oracle.com>,
        Chen Huang <chenhuang5@...wei.com>
Subject: [PATCH -next 3/3] ocfs2: Replaced simple_strtoull() with kstrtoull()

The simple_strtoull() function is deprecated in some situation since
it does not check for the range overflow, use kstrtoull() instead.

Signed-off-by: Chen Huang <chenhuang5@...wei.com>
---
 fs/ocfs2/cluster/heartbeat.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 1169c8dc9106..f89ffcbd585f 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -1596,12 +1596,13 @@ static ssize_t o2hb_region_start_block_store(struct config_item *item,
 	struct o2hb_region *reg = to_o2hb_region(item);
 	unsigned long long tmp;
 	char *p = (char *)page;
+	ssize_t ret;
 
 	if (reg->hr_bdev)
 		return -EINVAL;
 
-	tmp = simple_strtoull(p, &p, 0);
-	if (!p || (*p && (*p != '\n')))
+	ret = kstrtoull(p, 0, &tmp);
+	if (ret)
 		return -EINVAL;
 
 	reg->hr_start_block = tmp;
-- 
2.25.1