perf top: Fix error handling in cmd_top()

We should go to the cleanup path, to avoid leaks, detected using gcc's
ASan.

Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20190316080556.3075-9-changbin.du@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 614f278..2508a7a 100644 (file)
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1617,8 +1617,9 @@ int cmd_top(int argc, const char **argv)
        annotation_config__init();
 
        symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
-       if (symbol__init(NULL) < 0)
-               return -1;
+       status = symbol__init(NULL);
+       if (status < 0)
+               goto out_delete_evlist;
 
        sort__setup_elide(stdout);