signal: Convert to the new fallthrough notation

Switch from using the /* fall through */ comment style notation to the new,
preferred notation as outlined in our docs.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
[christian.brauner@ubuntu.com: rewrite commit message]
Link: https://lore.kernel.org/r/20200814083932.4975-1-linmiaohe@huawei.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/kernel/signal.c b/kernel/signal.c
index 42b67d2..a38b3ed 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -851,7 +851,7 @@ static int check_kill_permission(int sig, struct kernel_siginfo *info,
                         */
                        if (!sid || sid == task_session(current))
                                break;
-                       /* fall through */
+                       fallthrough;
                default:
                        return -EPERM;
                }