perf test: Use strerror_r instead of strerror

Use strerror_r instead of strerror in error messages for thread-safety.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naohiro Aota <naota@elisp.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20140814022245.3545.91394.stgit@kbuild-fedora.novalocal
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/tools/perf/tests/open-syscall-tp-fields.c b/tools/perf/tests/open-syscall-tp-fields.c
index 0785b64ffd6c..922bdb627950 100644
--- a/tools/perf/tests/open-syscall-tp-fields.c
+++ b/tools/perf/tests/open-syscall-tp-fields.c
@@ -22,6 +22,7 @@ int test__syscall_open_tp_fields(void)
         struct perf_evlist *evlist = perf_evlist__new();
         struct perf_evsel *evsel;
         int err = -1, i, nr_events = 0, nr_polls = 0;
+        char sbuf[STRERR_BUFSIZE];
 
         if (evlist == NULL) {
                 pr_debug("%s: perf_evlist__new\n", __func__);
@@ -48,13 +49,15 @@ int test__syscall_open_tp_fields(void)
 
         err = perf_evlist__open(evlist);
         if (err < 0) {
-                pr_debug("perf_evlist__open: %s\n", strerror(errno));
+                pr_debug("perf_evlist__open: %s\n",
+                         strerror_r(errno, sbuf, sizeof(sbuf)));
                 goto out_delete_evlist;
         }
 
         err = perf_evlist__mmap(evlist, UINT_MAX, false);
         if (err < 0) {
-                pr_debug("perf_evlist__mmap: %s\n", strerror(errno));
+                pr_debug("perf_evlist__mmap: %s\n",
+                         strerror_r(errno, sbuf, sizeof(sbuf)));
                 goto out_delete_evlist;
         }