linux-kernel - [PATCH 2/5] perf kmem: Fill in the missing freeing a session after an error occur

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Date:	Tue, 30 Jun 2015 17:15:21 +0900
From:	Taeung Song <treeze.taeung@...il.com>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	linux-kernel@...r.kernel.org, jolsa@...hat.com,
	namhyung@...nel.org, Ingo Molnar <mingo@...hat.com>,
	Taeung Song <treeze.taeung@...il.com>
Subject: [PATCH 2/5] perf kmem: Fill in the missing freeing a session after an error occur

When an error occur a 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 occur.

Signed-off-by: Taeung Song <treeze.taeung@...il.com>
---
 tools/perf/builtin-kmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 950f296..23b1faa 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -1916,7 +1916,7 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __maybe_unused)
 		if (!perf_evlist__find_tracepoint_by_name(session->evlist,
 							  "kmem:kmalloc")) {
 			pr_err(errmsg, "slab", "slab");
-			return -1;
+			goto out_delete;
 		}
 	}
 
@@ -1927,7 +1927,7 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __maybe_unused)
 							     "kmem:mm_page_alloc");
 		if (evsel == NULL) {
 			pr_err(errmsg, "page", "page");
-			return -1;
+			goto out_delete;
 		}
 
 		kmem_page_size = pevent_get_page_size(evsel->tp_format->pevent);
-- 
1.9.1

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