connector/cn_proc: Use task_is_in_init_pid_ns()

This patch replaces open code with task_is_in_init_pid_ns() to check if
a task is in root PID namespace.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c
index 646ad38..ccac1c4 100644 (file)
--- a/drivers/connector/cn_proc.c
+++ b/drivers/connector/cn_proc.c
@@ -358,7 +358,7 @@ static void cn_proc_mcast_ctl(struct cn_msg *msg,
         * other namespaces.
         */
        if ((current_user_ns() != &init_user_ns) ||
-           (task_active_pid_ns(current) != &init_pid_ns))
+           !task_is_in_init_pid_ns(current))
                return;
 
        /* Can only change if privileged. */