From: tip-bot for Mathieu Poirier <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: mathieu.poirier@linaro.org, leo.yan@linaro.org,
linux-kernel@vger.kernel.org, hpa@zytor.com, acme@redhat.com,
jolsa@redhat.com, tglx@linutronix.de, peterz@infradead.org,
mingo@kernel.org, suzuki.poulose@arm.com
Subject: [tip:perf/core] perf cs-etm: Fix wrong return values in error path
Date: Fri, 15 Feb 2019 01:40:43 -0800 [thread overview]
Message-ID: <tip-d3267ad43dd8b3778f9b3deb9a3946c844bdc9dc@git.kernel.org> (raw)
In-Reply-To: <20190212171618.25355-4-mathieu.poirier@linaro.org>
Commit-ID: d3267ad43dd8b3778f9b3deb9a3946c844bdc9dc
Gitweb: https://git.kernel.org/tip/d3267ad43dd8b3778f9b3deb9a3946c844bdc9dc
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
AuthorDate: Tue, 12 Feb 2019 10:16:08 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 14 Feb 2019 15:18:06 -0300
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 <mathieu.poirier@linaro.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki K Poulouse <suzuki.poulose@arm.com>
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 <acme@redhat.com>
---
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;
}
next prev parent reply other threads:[~2019-02-15 9:41 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-12 17:16 [PATCH 00/13] perf tools: CoreSight code cleanup and refactoring Mathieu Poirier
2019-02-12 17:16 ` [PATCH 01/13] perf tools: Remove unused structure field "state" Mathieu Poirier
2019-02-15 9:39 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
2019-02-12 17:16 ` [PATCH 02/13] perf tools: Remove unused structure field "time" and "timestamp" Mathieu Poirier
2019-02-15 9:40 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
2019-02-12 17:16 ` [PATCH 03/13] perf tools: Fix wrong return values in error path Mathieu Poirier
2019-02-15 9:40 ` tip-bot for Mathieu Poirier [this message]
2019-02-12 17:16 ` [PATCH 04/13] perf tools: Introducing function cs_etm_decoder__init_dparams() Mathieu Poirier
2019-02-15 9:41 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
2019-02-12 17:16 ` [PATCH 05/13] perf tools: Fix memory leak in error path Mathieu Poirier
2019-02-15 9:42 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
2019-02-12 17:16 ` [PATCH 06/13] perf tools: Introducing function cs_etm__init_trace_params() Mathieu Poirier
2019-02-15 9:42 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
2019-02-12 17:16 ` [PATCH 07/13] perf tools: Fix erroneous comment Mathieu Poirier
2019-02-15 9:43 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
2019-02-12 17:16 ` [PATCH 08/13] perf tools: Cleaning up function cs_etm__alloc_queue() Mathieu Poirier
2019-02-15 9:43 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
2019-02-12 17:16 ` [PATCH 09/13] perf tools: Rethink kernel address initialisation Mathieu Poirier
2019-02-15 9:44 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
2019-02-12 17:16 ` [PATCH 10/13] perf tools: Make cs_etm__run_decoder() queue independent Mathieu Poirier
2019-02-15 9:45 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
2019-02-12 17:16 ` [PATCH 11/13] perf tools: Modularize main decoder function Mathieu Poirier
2019-02-15 9:45 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
2019-02-12 17:16 ` [PATCH 12/13] perf tools: Modularize main packet processing loop Mathieu Poirier
2019-02-15 9:46 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
2019-02-12 17:16 ` [PATCH 13/13] perf tools: Modularize auxtrace_buffer fetch function Mathieu Poirier
2019-02-15 9:47 ` [tip:perf/core] perf cs-etm: " tip-bot for Mathieu Poirier
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