2013-07-10 19:26:46

by Arnaldo Carvalho de Melo

[permalink] [raw]
Subject: [PATCH 04/23] perf bench: Fix memory allocation fail check in mem{set,cpy} workloads

From: "Kirill A. Shutemov" <[email protected]>

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 <[email protected]>
Acked-by: Hitoshi Mitake <[email protected]>
Cc: Hitoshi Mitake <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
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");
}

--
1.8.1.4