From: Rafael J. Wysocki 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 finish anyway due to the while () condition being false. Signed-off-by: Rafael J. Wysocki kernel/power/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6.22-rc7/kernel/power/process.c =================================================================== --- linux-2.6.22-rc7.orig/kernel/power/process.c 2007-07-02 08:57:02.000000000 +0200 +++ linux-2.6.22-rc7/kernel/power/process.c 2007-07-02 08:57:05.000000000 +0200 @@ -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);