From: Masami Hiramatsu <masami.hiramatsu...@hitachi.com>

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

Signed-off-by: Masami Hiramatsu <masami.hiramatsu...@hitachi.com>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Naohiro Aota <na...@elisp.net>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Link: 
http://lkml.kernel.org/r/20140814022247.3545.4564.stgit@kbuild-fedora.novalocal
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/builtin-sched.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index f5874a27b346..9c9287fbf8e9 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -428,6 +428,7 @@ static u64 get_cpu_usage_nsec_parent(void)
 static int self_open_counters(void)
 {
        struct perf_event_attr attr;
+       char sbuf[STRERR_BUFSIZE];
        int fd;
 
        memset(&attr, 0, sizeof(attr));
@@ -440,7 +441,8 @@ static int self_open_counters(void)
 
        if (fd < 0)
                pr_err("Error: sys_perf_event_open() syscall returned "
-                      "with %d (%s)\n", fd, strerror(errno));
+                      "with %d (%s)\n", fd,
+                      strerror_r(errno, sbuf, sizeof(sbuf)));
        return fd;
 }
 
-- 
1.9.3

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