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@gmail.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.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@redhat.com>

diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index da2ec06f0742dc6acf98c1c9b74d7cf45ff0fcb2..80170aace5d4c893b99a842427759c8f5766066e 100644 (file)
--- 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)