From: Suzuki K Poulose <suzuki.poul...@arm.com>
We enable the trace path, before activating the source.
If we fail to enable the source, we must disable the path
to make sure it is available for another session.
Cc: Mathieu Poirier <mathieu.poir...@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poul...@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poir...@linaro.org>
---
drivers/hwtracing/coresight/coresight-etm-perf.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c
b/drivers/hwtracing/coresight/coresight-etm-perf.c
index afe7e7fc1a93..6db76ce6ba5f 100644
--- a/drivers/hwtracing/coresight/coresight-etm-perf.c
+++ b/drivers/hwtracing/coresight/coresight-etm-perf.c
@@ -317,11 +317,13 @@ static void etm_event_start(struct perf_event *event, int
flags)
/* Finally enable the tracer */
if (source_ops(csdev)->enable(csdev, event, CS_MODE_PERF))
- goto fail_end_stop;
+ goto fail_disable_path;
out:
return;
+fail_disable_path:
+ coresight_disable_path(path);
fail_end_stop:
perf_aux_output_flag(handle, PERF_AUX_FLAG_TRUNCATED);
perf_aux_output_end(handle, 0);
--
2.7.4
