Showing error 1606

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.c
Line in file: 3988
Project: Linux Kernel
Project version: 2.6.28
Tools: Stanse (1.2)
Entered: 2012-05-29 20:11:37 UTC

Source: 

3958#ifdef CONFIG_NO_HZ
3959        /*
3960         * If this cpu is the owner for idle load balancing, then do the
3961         * balancing on behalf of the other idle cpus whose ticks are
3962         * stopped.
3963         */
3964        if (this_rq->idle_at_tick &&
3965            atomic_read(&nohz.load_balancer) == this_cpu) {
3966                cpumask_t cpus = nohz.cpu_mask;
3967                struct rq *rq;
3968                int balance_cpu;
3969
3970                cpu_clear(this_cpu, cpus);
3971                for_each_cpu_mask_nr(balance_cpu, cpus) {
3972                        /*
3973                         * If this cpu gets work to do, stop the load balancing
3974                         * work being done for other cpus. Next load
3975                         * balancing owner will pick it up.
3976                         */
3977                        if (need_resched())
3978                                break;
3979
3980                        rebalance_domains(balance_cpu, CPU_IDLE);
3981
3982                        rq = cpu_rq(balance_cpu);
3983                        if (time_after(this_rq->next_balance, rq->next_balance))
3984                                this_rq->next_balance = rq->next_balance;
3985                }
3986        }
3987#endif
3988}
3989
3990/*
3991 * Trigger the SCHED_SOFTIRQ if it is time to do periodic load balancing.
3992 *
3993 * In case of CONFIG_NO_HZ, this is the place where we nominate a new
3994 * idle load balancing owner or decide to stop the periodic load balancing,
3995 * if the whole system is idle.
3996 */
3997static inline void trigger_load_balance(struct rq *rq, int cpu)
3998{
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