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; _