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

From: tip-bot for Masami Hiramatsu
Date: Mon Aug 18 2014 - 04:25:53 EST


Commit-ID: f9f33fdba159a9c163ecf1dc0106ebd4c2498130
Gitweb: http://git.kernel.org/tip/f9f33fdba159a9c163ecf1dc0106ebd4c2498130
Author: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
AuthorDate: Thu, 14 Aug 2014 02:22:51 +0000
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 15 Aug 2014 13:08:14 -0300

perf kvm: 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@xxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Naohiro Aota <naota@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/20140814022251.3545.83718.stgit@xxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-kvm.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 14d03ed..1a4ef9c 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -990,6 +990,7 @@ static int kvm_live_open_events(struct perf_kvm_stat *kvm)
int err, rc = -1;
struct perf_evsel *pos;
struct perf_evlist *evlist = kvm->evlist;
+ char sbuf[STRERR_BUFSIZE];

perf_evlist__config(evlist, &kvm->opts);

@@ -1026,12 +1027,14 @@ static int kvm_live_open_events(struct perf_kvm_stat *kvm)

err = perf_evlist__open(evlist);
if (err < 0) {
- printf("Couldn't create the events: %s\n", strerror(errno));
+ printf("Couldn't create the events: %s\n",
+ strerror_r(errno, sbuf, sizeof(sbuf)));
goto out;
}

if (perf_evlist__mmap(evlist, kvm->opts.mmap_pages, false) < 0) {
- ui__error("Failed to mmap the events: %s\n", strerror(errno));
+ ui__error("Failed to mmap the events: %s\n",
+ strerror_r(errno, sbuf, sizeof(sbuf)));
perf_evlist__close(evlist);
goto out;
}
--
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