Showing error 1598

User: Jiri Slaby
Error type: Leaving function in locked state
Error type description: Some lock is not unlocked on all paths of a function, so it is leaked
File location: kernel/sched_fair.c
Line in file: 1555
Project: Linux Kernel
Project version: 2.6.28
Tools: Stanse (1.2)
Entered: 2012-05-29 20:11:37 UTC

Source: 

1525                struct cfs_rq *busiest_cfs_rq = tg->cfs_rq[busiest_cpu];
1526                unsigned long busiest_h_load = busiest_cfs_rq->h_load;
1527                unsigned long busiest_weight = busiest_cfs_rq->load.weight;
1528                u64 rem_load, moved_load;
1529
1530                /*
1531                 * empty group
1532                 */
1533                if (!busiest_cfs_rq->task_weight)
1534                        continue;
1535
1536                rem_load = (u64)rem_load_move * busiest_weight;
1537                rem_load = div_u64(rem_load, busiest_h_load + 1);
1538
1539                moved_load = __load_balance_fair(this_rq, this_cpu, busiest,
1540                                rem_load, sd, idle, all_pinned, this_best_prio,
1541                                tg->cfs_rq[busiest_cpu]);
1542
1543                if (!moved_load)
1544                        continue;
1545
1546                moved_load *= busiest_h_load;
1547                moved_load = div_u64(moved_load, busiest_weight + 1);
1548
1549                rem_load_move -= moved_load;
1550                if (rem_load_move < 0)
1551                        break;
1552        }
1553        rcu_read_unlock();
1554
1555        return max_load_move - rem_load_move;
1556}
1557#else
1558static unsigned long
1559load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest,
1560                  unsigned long max_load_move,
1561                  struct sched_domain *sd, enum cpu_idle_type idle,
1562                  int *all_pinned, int *this_best_prio)
1563{
1564        return __load_balance_fair(this_rq, this_cpu, busiest,
1565                        max_load_move, sd, idle, all_pinned,
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