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@huawei.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210526092020.554341-1-chenhuang5@huawei.com
static int parse_number(const char __user *p, size_t count, u64 *val)
{
char buf[40];
- char *end;
if (count > 39)
return -EINVAL;
buf[count] = 0;
- *val = simple_strtoull(buf, &end, 10);
- if (*end && *end != '\n')
- return -EINVAL;
-
- return 0;
+ return kstrtoull(buf, 10, val);
}
/* ****************************************************************** */