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From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Markus Trippelsdorf <markus@trippelsdorf.de>,
	Namhyung Kim <namhyung.kim@lge.com>
Subject: [PATCH] perf target: Ignore return value of strerror_r() explicitly
Date: Mon,  2 Jul 2012 15:20:14 +0900	[thread overview]
Message-ID: <1341210014-10113-1-git-send-email-namhyung@kernel.org> (raw)

From: Namhyung Kim <namhyung.kim@lge.com>

Since glibc 2.16 added the warn_unused_result (wur) attribute
to the function, we should check the return value or ignore it
explicitly.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/target.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/target.c b/tools/perf/util/target.c
index 1064d5b148ad..18080ca9ceec 100644
--- a/tools/perf/util/target.c
+++ b/tools/perf/util/target.c
@@ -111,7 +111,8 @@ int perf_target__strerror(struct perf_target *target, int errnum,
 	const char *msg;
 
 	if (errnum >= 0) {
-		strerror_r(errnum, buf, buflen);
+		/* make glibc (>= 2.16) happy */
+		(void)strerror_r(errnum, buf, buflen);
 		return 0;
 	}
 
-- 
1.7.10.2


             reply	other threads:[~2012-07-02  6:25 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-02  6:20 Namhyung Kim [this message]
2012-07-02 15:34 ` [PATCH] perf target: Ignore return value of strerror_r() explicitly Arnaldo Carvalho de Melo
2012-07-03  0:28   ` Namhyung Kim

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