linux-kernel - [PATCH 2/7] selftest/timers: Quiet warning due to lack of return check on brk

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Date:	Wed,  4 Feb 2015 22:37:07 -0800
From:	John Stultz <john.stultz@...aro.org>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	John Stultz <john.stultz@...aro.org>,
	Shuah Khan <shuahkh@....samsung.com>
Subject: [PATCH 2/7] selftest/timers: Quiet warning due to lack of return check on brk

The posix_timers.c test has a loop that tries to keep it in
kernel space, repeatedly calling brk(). Since its noise, and
a failure won't change what the test would do, add a unused
value to quiet the warning.

Cc: Shuah Khan <shuahkh@....samsung.com>
Signed-off-by: John Stultz <john.stultz@...aro.org>
---
 tools/testing/selftests/timers/posix_timers.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/timers/posix_timers.c b/tools/testing/selftests/timers/posix_timers.c
index f87d970..3e04cc0 100644
--- a/tools/testing/selftests/timers/posix_timers.c
+++ b/tools/testing/selftests/timers/posix_timers.c
@@ -35,10 +35,11 @@ static void user_loop(void)
 static void kernel_loop(void)
 {
 	void *addr = sbrk(0);
+	int unused;
 
 	while (!done) {
-		brk(addr + 4096);
-		brk(addr);
+		unused = brk(addr + 4096);
+		unused = brk(addr);
 	}
 }
 
-- 
1.9.1

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