On Fri, 2005-08-05 at 10:22 -0500, Dmitry Torokhov wrote:
> On 8/5/05, Pekka Enberg <[email protected]> wrote:
> > This patch converts kcalloc(1, ...) calls to use the new kzalloc() function.
> >
>
> Hi,
>
> Have you seen the following in include/sound/core?
>
> ...
> #define kmalloc(size, flags) snd_hidden_kmalloc(size, flags)
> #define kcalloc(n, size, flags) snd_hidden_kcalloc(n, size, flags)
> #define kfree(obj) snd_hidden_kfree(obj)
Thanks for the catch, Dmitry.
Pekka
[PATCH] ALSA: introduce snd_hidden_kzalloc
This patch introduces a memory-leak tracking version of kzalloc for ALSA.
Signed-off-by: Pekka Enberg <[email protected]>
---
include/sound/core.h | 2 ++
sound/core/memory.c | 13 +++++++++----
2 files changed, 11 insertions(+), 4 deletions(-)
Index: 2.6/include/sound/core.h
===================================================================
--- 2.6.orig/include/sound/core.h
+++ 2.6/include/sound/core.h
@@ -291,12 +291,14 @@ void snd_memory_done(void);
int snd_memory_info_init(void);
int snd_memory_info_done(void);
void *snd_hidden_kmalloc(size_t size, unsigned int __nocast flags);
+void *snd_hidden_kzalloc(size_t size, unsigned int __nocast flags);
void *snd_hidden_kcalloc(size_t n, size_t size, unsigned int __nocast flags);
void snd_hidden_kfree(const void *obj);
void *snd_hidden_vmalloc(unsigned long size);
void snd_hidden_vfree(void *obj);
char *snd_hidden_kstrdup(const char *s, unsigned int __nocast flags);
#define kmalloc(size, flags) snd_hidden_kmalloc(size, flags)
+#define kzalloc(size, flags) snd_hidden_kzalloc(size, flags)
#define kcalloc(n, size, flags) snd_hidden_kcalloc(n, size, flags)
#define kfree(obj) snd_hidden_kfree(obj)
#define vmalloc(size) snd_hidden_vmalloc(size)
Index: 2.6/sound/core/memory.c
===================================================================
--- 2.6.orig/sound/core/memory.c
+++ 2.6/sound/core/memory.c
@@ -116,15 +116,20 @@ void *snd_hidden_kmalloc(size_t size, un
return _snd_kmalloc(size, flags);
}
+void *snd_hidden_kzalloc(size_t size, unsigned int __nocast flags)
+{
+ void *ret = _snd_kmalloc(size, flags);
+ if (ret)
+ memset(ret, 0, size);
+ return ret;
+}
+
void *snd_hidden_kcalloc(size_t n, size_t size, unsigned int __nocast flags)
{
void *ret = NULL;
if (n != 0 && size > INT_MAX / n)
return ret;
- ret = _snd_kmalloc(n * size, flags);
- if (ret)
- memset(ret, 0, n * size);
- return ret;
+ return snd_hidden_kzalloc(n * size, flags);
}
void snd_hidden_kfree(const void *obj)
-
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