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-rw-r--r--kernel/perf_counter.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index 1ac18daa424..f27a7e9f3c4 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -1934,7 +1934,8 @@ __perf_counter_exit_task(struct task_struct *child,
}
}
- kfree(child_counter);
+ if (!child_counter->filp || !atomic_long_read(&child_counter->filp->f_count))
+ kfree(child_counter);
}
/*