linux-kernel - [tip:perf/urgent] perf bench: Fix memory allocation fail check in mem{set,cpy} workloads

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Date:	Fri, 12 Jul 2013 01:49:49 -0700
From:	"tip-bot for Kirill A. Shutemov" <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, paulus@...ba.org,
	mingo@...hat.com, hpa@...or.com, mingo@...nel.org,
	a.p.zijlstra@...llo.nl, kirill.shutemov@...ux.intel.com,
	h.mitake@...il.com, mitake.hitoshi@....ntt.co.jp,
	tglx@...utronix.de
Subject: [tip:perf/urgent] perf bench:
  Fix memory allocation fail check in mem{set,cpy} workloads

Commit-ID:  13966721a11f4a2ba8038191e48083b5f31822bb
Gitweb:     http://git.kernel.org/tip/13966721a11f4a2ba8038191e48083b5f31822bb
Author:     Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
AuthorDate: Thu, 6 Jun 2013 14:35:03 +0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 8 Jul 2013 17:35:40 -0300

perf bench: Fix memory allocation fail check in mem{set,cpy} workloads

Addresses of allocated memory areas saved to '*src' and '*dst', so we
need to check them for NULL, not 'src' and 'dst'.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
Acked-by: Hitoshi Mitake <mitake.hitoshi@....ntt.co.jp>
Cc: Hitoshi Mitake <h.mitake@...il.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1370518503-4230-1-git-send-email-kirill.shutemov@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/bench/mem-memcpy.c | 4 ++--
 tools/perf/bench/mem-memset.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c
index 93c83e3..25fd3f1 100644
--- a/tools/perf/bench/mem-memcpy.c
+++ b/tools/perf/bench/mem-memcpy.c
@@ -111,11 +111,11 @@ static double timeval2double(struct timeval *ts)
 static void alloc_mem(void **dst, void **src, size_t length)
 {
 	*dst = zalloc(length);
-	if (!dst)
+	if (!*dst)
 		die("memory allocation failed - maybe length is too large?\n");
 
 	*src = zalloc(length);
-	if (!src)
+	if (!*src)
 		die("memory allocation failed - maybe length is too large?\n");
 }
 
diff --git a/tools/perf/bench/mem-memset.c b/tools/perf/bench/mem-memset.c
index c6e4bc5..4a2f120 100644
--- a/tools/perf/bench/mem-memset.c
+++ b/tools/perf/bench/mem-memset.c
@@ -111,7 +111,7 @@ static double timeval2double(struct timeval *ts)
 static void alloc_mem(void **dst, size_t length)
 {
 	*dst = zalloc(length);
-	if (!dst)
+	if (!*dst)
 		die("memory allocation failed - maybe length is too large?\n");
 }
 
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