[PATCH 4/5] perf mem: Fill in the missing freeing a session after an error occur

[Taeung Song <treeze.taeung@gmail.com>]

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@gmail.com>
---
 tools/perf/builtin-mem.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index da2ec06..8b6d473 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -135,24 +135,27 @@ 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) {
+			ret = err;
 			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 = err;
+	else
+		ret = 0;
 
 out_delete:
 	perf_session__delete(session);
-	return err;
+	return ret;
 }
 
 static int report_events(int argc, const char **argv, struct perf_mem *mem)
-- 
1.9.1