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perf sched: Use strerror_r instead of strerror

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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/20140814022247.3545.4564.stgit@kbuild-fedora.novalocal
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Masami Hiramatsu 2014-08-14 02:22:47 +00:00 committed by Arnaldo Carvalho de Melo
parent ba3dfff8ad
commit fb74fbda42
1 changed files with 3 additions and 1 deletions
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4
tools/perf/builtin-sched.c
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@ -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;
}