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authorLeo Yan <leo.yan@linaro.org>2018-06-18 13:09:55 +0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-07-24 14:48:32 -0300
commit6cd4ac6a02c9bc6560faf567ac013902ab9cd039 (patch)
tree64fd7d4f91a18232f88f5a3fe9aa264652a18492
parent6abf0f451087176caf0f9ad0cc2a79bcc5ebb443 (diff)
perf cs-etm: Bail out immediately for instruction sample failure
If the instruction sample failure has happened, it isn't necessary to execute to the end of the function cs_etm__flush(). This commit is to bail out immediately and return the error code. Signed-off-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Walker <robert.walker@arm.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1529298599-3876-3-git-send-email-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/util/cs-etm.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index 822ba915d144..8b2c099e750a 100644
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -939,6 +939,9 @@ static int cs_etm__flush(struct cs_etm_queue *etmq)
err = cs_etm__synth_instruction_sample(
etmq, addr,
etmq->period_instructions);
+ if (err)
+ return err;
+
etmq->period_instructions = 0;
/*