sched: fix cpu hotplug, cleanup

[pandora-kernel.git] / kernel / sched.c

diff --git a/kernel/sched.c b/kernel/sched.c
index a66e856..4e2f603 100644 (file)
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5622,10 +5622,10 @@ static int __migrate_task(struct task_struct *p, int src_cpu, int dest_cpu)
        double_rq_lock(rq_src, rq_dest);
        /* Already moved. */
        if (task_cpu(p) != src_cpu)
-               goto out;
+               goto done;
        /* Affinity changed (again). */
        if (!cpu_isset(dest_cpu, p->cpus_allowed))
-               goto out;
+               goto fail;
 
        on_rq = p->se.on_rq;
        if (on_rq)
@@ -5636,8 +5636,9 @@ static int __migrate_task(struct task_struct *p, int src_cpu, int dest_cpu)
                activate_task(rq_dest, p, 0);
                check_preempt_curr(rq_dest, p);
        }
+done:
        ret = 1;
-out:
+fail:
        double_rq_unlock(rq_src, rq_dest);
        return ret;
 }
@@ -8502,6 +8503,9 @@ int sched_group_set_rt_period(struct task_group *tg, long rt_period_us)
        rt_period = (u64)rt_period_us * NSEC_PER_USEC;
        rt_runtime = tg->rt_bandwidth.rt_runtime;
 
+       if (rt_period == 0)
+               return -EINVAL;
+
        return tg_set_bandwidth(tg, rt_period, rt_runtime);
 }