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-rw-r--r--kernel/sched/cpupri.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/sched/cpupri.c b/kernel/sched/cpupri.c
index 8b836b376d9..8834243abee 100644
--- a/kernel/sched/cpupri.c
+++ b/kernel/sched/cpupri.c
@@ -30,6 +30,7 @@
#include <linux/gfp.h>
#include <linux/sched.h>
#include <linux/sched/rt.h>
+#include <linux/slab.h>
#include "cpupri.h"
/* Convert between a 140 based task->prio, and our 102 based cpupri */
@@ -70,8 +71,7 @@ int cpupri_find(struct cpupri *cp, struct task_struct *p,
int idx = 0;
int task_pri = convert_prio(p->prio);
- if (task_pri >= MAX_RT_PRIO)
- return 0;
+ BUG_ON(task_pri >= CPUPRI_NR_PRIORITIES);
for (idx = 0; idx < task_pri; idx++) {
struct cpupri_vec *vec = &cp->pri_to_cpu[idx];
@@ -219,8 +219,13 @@ int cpupri_init(struct cpupri *cp)
goto cleanup;
}
+ cp->cpu_to_pri = kcalloc(nr_cpu_ids, sizeof(int), GFP_KERNEL);
+ if (!cp->cpu_to_pri)
+ goto cleanup;
+
for_each_possible_cpu(i)
cp->cpu_to_pri[i] = CPUPRI_INVALID;
+
return 0;
cleanup:
@@ -237,6 +242,7 @@ void cpupri_cleanup(struct cpupri *cp)
{
int i;
+ kfree(cp->cpu_to_pri);
for (i = 0; i < CPUPRI_NR_PRIORITIES; i++)
free_cpumask_var(cp->pri_to_cpu[i].mask);
}