signal: Remove superflous try_to_freeze() loop in do_signal_stop()

do_signal_stop() is used only by get_signal_to_deliver() and after a
successful signal stop, it always calls try_to_freeze(), so the
try_to_freeze() loop around schedule() in do_signal_stop() is
superflous and confusing.  Remove it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/kernel/signal.c b/kernel/signal.c
index e26274abf3a9..f4db76986ec1 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1781,9 +1781,7 @@ static int do_signal_stop(int signr)
         }
 
         /* Now we don't run again until woken by SIGCONT or SIGKILL */
-        do {
-                schedule();
-        } while (try_to_freeze());
+        schedule();
 
         tracehook_finish_jctl();
         current->exit_code = 0;