shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-09 12:17:12 +09:00
Code Issues Packages Projects Releases Wiki Activity

UPSTREAM: coresight: perf: Disable trace path upon source error

Browse Source 
(Upstream commit 4f8ef21007).

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.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Bug: 140266694
Change-Id: I20b672edfcaca5d3851284ec4fbe20ffaebbe5f4
Signed-off-by: Yabin Cui <yabinc@google.com>
This commit is contained in:
Suzuki K Poulose
2018-09-20 13:17:50 -06:00
committed by Yabin Cui
parent 27191b7460
commit 94a6c1f380
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/hwtracing/coresight/coresight-etm-perf.c
View File

@@ -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);