security: tomoyo: Fix obsolete function

simple_strtoul is obsolete, and use kstrtouint instead

Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.morris@microsoft.com>

diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 03923a1..9b38f94 100644 (file)
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -1660,7 +1660,8 @@ static void tomoyo_read_pid(struct tomoyo_io_buffer *head)
        head->r.eof = true;
        if (tomoyo_str_starts(&buf, "global-pid "))
                global_pid = true;
-       pid = (unsigned int) simple_strtoul(buf, NULL, 10);
+       if (kstrtouint(buf, 10, &pid))
+               return;
        rcu_read_lock();
        if (global_pid)
                p = find_task_by_pid_ns(pid, &init_pid_ns);