From: Rafael J. Wysocki <rjw@sisk.pl>

We don't need to check if todo is positive before calling time_after() in
try_to_freeze_tasks(), because if todo is zero at this point, the loop will be
broken anyway due to the while () condition being false.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/power/process.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -puN kernel/power/process.c~freezer-remove-redundant-check-in-try_to_freeze_tasks kernel/power/process.c
--- a/kernel/power/process.c~freezer-remove-redundant-check-in-try_to_freeze_tasks
+++ a/kernel/power/process.c
@@ -149,7 +149,7 @@ static int try_to_freeze_tasks(int freez
 		} while_each_thread(g, p);
 		read_unlock(&tasklist_lock);
 		yield();			/* Yield is okay here */
-		if (todo && time_after(jiffies, end_time))
+		if (time_after(jiffies, end_time))
 			break;
 	} while (todo);
 
_