perf top: Use strerror_r instead of strerror

Use strerror_r instead of strerror in error message 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/20140814022238.3545.15569.stgit@kbuild-fedora.novalocal
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 87a6615a40faa06f8bece3b3e44ed4b177537bef..a77ff6ca5fbd9e9425a03dbfbb73d3dc25507900 100644 (file)
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -899,7 +899,7 @@ try_again:
 
        if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) {
                ui__error("Failed to mmap with %d (%s)\n",
-                           errno, strerror(errno));
+                           errno, strerror_r(errno, msg, sizeof(msg)));
                goto out_err;
        }