perf kmem: 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@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1435652124-22414-3-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 950f296dfcf7a402ebbad0df1edf16e4d62a52bd..23b1faaaa4cc5f83c263ffbc9a0f14733c0dcae2 100644 (file)
--- 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);