sched: rt: fix prevent

Change-Id: Ia34ab264f22a956c45a654d9e4d5e737c5629822
Signed-off-by: Youngtae Lee <yt0729.lee@samsung.com>

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 08a0772bd9f95a03ca82c8334b0498dc8c9b6f08..497b25aa7632fd0dd644427fbd5849443c858474 100644 (file)
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -31,6 +31,7 @@ struct frt_dom {
        /* kobject for sysfs group */
        struct kobject          kobj;
 };
+struct cpumask activated_mask;
 
 LIST_HEAD(frt_list);
 DEFINE_RAW_SPINLOCK(frt_lock);
@@ -292,29 +293,28 @@ static int __init init_frt(void)
        struct frt_dom *dom, *prev, *head;
        struct device_node *dn;
        int cpu, tcpu, cnt = 0;
-       struct cpumask *ptr_mask;
 
        dn = of_find_node_by_path("/cpus/ems");
        if (!dn)
                return 0;
 
        INIT_LIST_HEAD(&frt_list);
-       ptr_mask = kzalloc(sizeof(struct cpumask), GFP_KERNEL);
-       if (!ptr_mask)
-               pr_err("FRT(%s): failed to allocate ptr_mask\n");
-       cpumask_setall(ptr_mask);
+       cpumask_setall(&activated_mask);
 
        for_each_possible_cpu(cpu) {
                if (cpu != cpumask_first(cpu_coregroup_mask(cpu)))
                        continue;
 
                dom = kzalloc(sizeof(struct frt_dom), GFP_KERNEL);
-               if (!dom)
+               if (!dom) {
                        pr_err("FRT(%s): failed to allocate dom\n");
+                       goto put_node;
+               }
+
                if (cpu == 0)
                        head = dom;
 
-               dom->activated_cpus = ptr_mask;
+               dom->activated_cpus = &activated_mask;
 
                cpumask_copy(&dom->cpus, cpu_coregroup_mask(cpu));
 
@@ -335,7 +335,9 @@ static int __init init_frt(void)
        }
        frt_sysfs_init();
 
+put_node:
        of_node_put(dn);
+
        return 0;
 
 } late_initcall(init_frt);