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-rw-r--r--kernel/perf_counter.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index 615440ab9295..117622cb73a3 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -2646,7 +2646,7 @@ static void perf_counter_output(struct perf_counter *counter, int nmi,
2646 u64 counter; 2646 u64 counter;
2647 } group_entry; 2647 } group_entry;
2648 struct perf_callchain_entry *callchain = NULL; 2648 struct perf_callchain_entry *callchain = NULL;
2649 struct perf_tracepoint_record *tp; 2649 struct perf_tracepoint_record *tp = NULL;
2650 int callchain_size = 0; 2650 int callchain_size = 0;
2651 u64 time; 2651 u64 time;
2652 struct { 2652 struct {
@@ -2717,7 +2717,8 @@ static void perf_counter_output(struct perf_counter *counter, int nmi,
2717 2717
2718 if (sample_type & PERF_SAMPLE_TP_RECORD) { 2718 if (sample_type & PERF_SAMPLE_TP_RECORD) {
2719 tp = data->private; 2719 tp = data->private;
2720 header.size += tp->size; 2720 if (tp)
2721 header.size += tp->size;
2721 } 2722 }
2722 2723
2723 ret = perf_output_begin(&handle, counter, header.size, nmi, 1); 2724 ret = perf_output_begin(&handle, counter, header.size, nmi, 1);
@@ -2783,7 +2784,7 @@ static void perf_counter_output(struct perf_counter *counter, int nmi,
2783 } 2784 }
2784 } 2785 }
2785 2786
2786 if (sample_type & PERF_SAMPLE_TP_RECORD) 2787 if ((sample_type & PERF_SAMPLE_TP_RECORD) && tp)
2787 perf_output_copy(&handle, tp->record, tp->size); 2788 perf_output_copy(&handle, tp->record, tp->size);
2788 2789
2789 perf_output_end(&handle); 2790 perf_output_end(&handle);