linux-kernel - [tip:perf/urgent] perf mem: Fill in the missing session freeing after an error occurs

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Message-ID: <tip-1df9fade87ea4831c024de9806f88427f9f33e62@git.kernel.org>
Date:	Fri, 3 Jul 2015 00:49:22 -0700
From:	tip-bot for Taeung Song <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	mingo@...nel.org, namhyung@...nel.org,
	linux-kernel@...r.kernel.org, hpa@...or.com, acme@...hat.com,
	jolsa@...hat.com, tglx@...utronix.de, treeze.taeung@...il.com
Subject: [tip:perf/urgent] perf mem:
  Fill in the missing session freeing after an error occurs

Commit-ID:  1df9fade87ea4831c024de9806f88427f9f33e62
Gitweb:     http://git.kernel.org/tip/1df9fade87ea4831c024de9806f88427f9f33e62
Author:     Taeung Song <treeze.taeung@...il.com>
AuthorDate: Wed, 1 Jul 2015 21:08:19 +0900
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 1 Jul 2015 17:53:49 -0300

perf mem: Fill in the missing session freeing after an error occurs

When an error occurs an error value is just returned without freeing the
session. So allocating and freeing session have to be matched as a pair
even if an error occurs.

Signed-off-by: Taeung Song <treeze.taeung@...il.com>
Acked-by: Jiri Olsa <jolsa@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Link: http://lkml.kernel.org/r/1435752499-11752-1-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-mem.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index da2ec06..80170aa 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -124,7 +124,6 @@ static int report_raw_events(struct perf_mem *mem)
 		.mode = PERF_DATA_MODE_READ,
 		.force = mem->force,
 	};
-	int err = -EINVAL;
 	int ret;
 	struct perf_session *session = perf_session__new(&file, false,
 							 &mem->tool);
@@ -135,24 +134,21 @@ static int report_raw_events(struct perf_mem *mem)
 	if (mem->cpu_list) {
 		ret = perf_session__cpu_bitmap(session, mem->cpu_list,
 					       mem->cpu_bitmap);
-		if (ret)
+		if (ret < 0)
 			goto out_delete;
 	}
 
-	if (symbol__init(&session->header.env) < 0)
-		return -1;
+	ret = symbol__init(&session->header.env);
+	if (ret < 0)
+		goto out_delete;
 
 	printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
 
-	err = perf_session__process_events(session);
-	if (err)
-		return err;
-
-	return 0;
+	ret = perf_session__process_events(session);
 
 out_delete:
 	perf_session__delete(session);
-	return err;
+	return ret;
 }
 
 static int report_events(int argc, const char **argv, struct perf_mem *mem)
--
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