linux-kernel - [PATCH 1/4] perf probe: Delete an unnecessary check in try_to_find_absolute

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Date:   Mon, 23 Jan 2017 16:22:22 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     Adrian Hunter <adrian.hunter@...el.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        He Kuang <hekuang@...wei.com>, Ingo Molnar <mingo@...hat.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Milian Wolff <milian.wolff@...b.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>,
        Wang Nan <wangnan0@...wei.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 1/4] perf probe: Delete an unnecessary check in
 try_to_find_absolute_address()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 23 Jan 2017 14:54:26 +0100

Remove a condition check which is unnecessary at the end
because this source code place should usually only be reached
with a non-zero pointer.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 tools/perf/util/probe-event.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index d281ae2b54e8..6c7508337fe8 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2966,10 +2966,8 @@ static int try_to_find_absolute_address(struct perf_probe_event *pev,
 	return 1;
 
 errout:
-	if (*tevs) {
-		clear_probe_trace_events(*tevs, 1);
-		*tevs = NULL;
-	}
+	clear_probe_trace_events(*tevs, 1);
+	*tevs = NULL;
 	return err;
 }
 
-- 
2.11.0