[tip:perf/core] perf top: Use strerror_r instead of strerror

[tip-bot for Masami Hiramatsu <tipbot@zytor.com>]

Commit-ID:  809adea685f7dbc9bdcc38b27d24801c461d8413
Gitweb:     http://git.kernel.org/tip/809adea685f7dbc9bdcc38b27d24801c461d8413
Author:     Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
AuthorDate: Thu, 14 Aug 2014 02:22:38 +0000
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 15 Aug 2014 13:05:00 -0300

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>
---
 tools/perf/builtin-top.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 87a6615..a77ff6c 100644
--- 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;
 	}