From d3267ad43dd8b3778f9b3deb9a3946c844bdc9dc Mon Sep 17 00:00:00 2001 From: Mathieu Poirier Date: Tue, 12 Feb 2019 10:16:08 -0700 Subject: [PATCH] perf cs-etm: Fix wrong return values in error path Function cs_etm__mem_access() is supposed to return a u32 but the error path returns negative values at a couple of places, something that really throws off the clients using it. Fix the situation by return '0'. Signed-off-by: Mathieu Poirier Cc: Jiri Olsa Cc: Leo Yan Cc: Peter Zijlstra Cc: Suzuki K Poulouse Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/20190212171618.25355-4-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/cs-etm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 1d9419a0cf0c..f396fee9bb95 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -324,7 +324,7 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address, struct addr_location al; if (!etmq) - return -1; + return 0; machine = etmq->etm->machine; cpumode = cs_etm__cpu_mode(etmq, address); @@ -332,7 +332,7 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address, thread = etmq->thread; if (!thread) { if (cpumode != PERF_RECORD_MISC_KERNEL) - return -EINVAL; + return 0; thread = etmq->etm->unknown_thread; } -- 2.30.2