[tip:perf/core] perf test: Create kernel maps properly for hist entries test

[tip-bot for Jiri Olsa <tipbot@zytor.com>]

Commit-ID:  d6e94fa6b6dab4668e46665bbe766142af32cc15
Gitweb:     http://git.kernel.org/tip/d6e94fa6b6dab4668e46665bbe766142af32cc15
Author:     Jiri Olsa <jolsa@kernel.org>
AuthorDate: Wed, 2 Dec 2015 22:08:29 +0100
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 7 Dec 2015 18:12:56 -0300

perf test: Create kernel maps properly for hist entries test

It fixes segfault within machine__exit, that's caused
but not creating kernel maps for machine.. We're calling
machine__destroy_kernel_maps in machine__exit since commit:

  ebe9729c8c31 perf machine: Fix to destroy kernel maps when machine exits

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/tip-k4snzv5t4dvdckggzwdzyljo@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/hists_common.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/perf/tests/hists_common.c b/tools/perf/tests/hists_common.c
index ce80b27..46f453b 100644
--- a/tools/perf/tests/hists_common.c
+++ b/tools/perf/tests/hists_common.c
@@ -87,6 +87,11 @@ struct machine *setup_fake_machine(struct machines *machines)
 		return NULL;
 	}
 
+	if (machine__create_kernel_maps(machine)) {
+		pr_debug("Not enough memory for machine setup\n");
+		goto out;
+	}
+
 	for (i = 0; i < ARRAY_SIZE(fake_threads); i++) {
 		struct thread *thread;