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-rw-r--r--kernel/perf_event.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 4ec55ef5810c..244ca3acb0ee 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -6446,11 +6446,6 @@ int perf_event_init_context(struct task_struct *child, int ctxn)
unsigned long flags;
int ret = 0;
- child->perf_event_ctxp[ctxn] = NULL;
-
- mutex_init(&child->perf_event_mutex);
- INIT_LIST_HEAD(&child->perf_event_list);
-
if (likely(!parent->perf_event_ctxp[ctxn]))
return 0;
@@ -6539,6 +6534,10 @@ int perf_event_init_task(struct task_struct *child)
{
int ctxn, ret;
+ memset(child->perf_event_ctxp, 0, sizeof(child->perf_event_ctxp));
+ mutex_init(&child->perf_event_mutex);
+ INIT_LIST_HEAD(&child->perf_event_list);
+
for_each_task_context_nr(ctxn) {
ret = perf_event_init_context(child, ctxn);
if (ret)