shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 11:26:02 +09:00
Code Issues Packages Projects Releases Wiki Activity

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Suzuki K Poulose
2018-09-20 13:17:50 -06:00
committed by Greg Kroah-Hartman
parent 87e382c3f7
commit 1099665125
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

@@ -306,11 +306,13 @@ 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);