sched: Fix signedness bug in yield_to()

In 7b270f6099 "sched: Bail out of yield_to when source and
target runqueue has one task" we changed this to store -ESRCH so
it needs to be signed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kbuild@01.org
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Mike Galbraith <efault@gmx.de>
Link: http://lkml.kernel.org/r/20130205113751.GA20521@elgon.mountain
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 26058d0..c5b089d 100644 (file)
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4371,7 +4371,7 @@ bool __sched yield_to(struct task_struct *p, bool preempt)
        struct task_struct *curr = current;
        struct rq *rq, *p_rq;
        unsigned long flags;
-       bool yielded = 0;
+       int yielded = 0;
 
        local_irq_save(flags);
        rq = this_rq();