sched: Fix out of scope variable access in sched_slice()

Access to local variable lw is aliased by usage of pointer load.
Access to pointer load in calc_delta_mine() happens when lw is
already out of scope.

[ Reported by static code analysis. ]
Signed-off-by: NChristian Engelmayer <christian.engelmayer@frequentis.com>
LKML-Reference: <20090616103512.0c846e51@frequentis.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

kernel/sched_fair.c

@@ -430,12 +430,13 @@ static u64 sched_slice(struct cfs_rq *cfs_rq, struct sched_entity *se)
 
 	for_each_sched_entity(se) {
 		struct load_weight *load;
+		struct load_weight lw;
 
 		cfs_rq = cfs_rq_of(se);
 		load = &cfs_rq->load;
 
 		if (unlikely(!se->on_rq)) {
-			struct load_weight lw = cfs_rq->load;
+			lw = cfs_rq->load;
 
 			update_load_add(&lw, se->load.weight);
 			load = &lw;