[patch 017/192] ocfs2: replace simple_strtoull() with kstrtoull()

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From: Chen Huang <chenhuang5@xxxxxxxxxx>
Subject: ocfs2: replace simple_strtoull() with kstrtoull()

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

Link: https://lkml.kernel.org/r/20210526092020.554341-3-chenhuang5@xxxxxxxxxx
Signed-off-by: Chen Huang <chenhuang5@xxxxxxxxxx>
Cc: Mark Fasheh <mark@xxxxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Cc: Joseph Qi <jiangqi903@xxxxxxxxx>
Cc: Changwei Ge <gechangwei@xxxxxxx>
Cc: Gang He <ghe@xxxxxxxx>
Cc: Jun Piao <piaojun@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 fs/ocfs2/cluster/heartbeat.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/fs/ocfs2/cluster/heartbeat.c~ocfs2-replaced-simple_strtoull-with-kstrtoull
+++ a/fs/ocfs2/cluster/heartbeat.c
@@ -1596,12 +1596,13 @@ static ssize_t o2hb_region_start_block_s
 	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;
_



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