[PATCH] ALSA: convert kcalloc to kzalloc

This patch introduces a memory-leak tracking version of kzalloc for ALSA.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Jaroslav Kysela <perex@suse.cz>
Signed-off-by: Jiri Slaby <xslaby@fi.muni.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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)

sound/core/memory.c

@@ -116,15 +116,21 @@ void *snd_hidden_kmalloc(size_t size, unsigned int __nocast flags)
 	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;
+}
+EXPORT_SYMBOL(snd_hidden_kzalloc);
+
 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)

sound/pci/ali5451/ali5451.c

@@ -2249,7 +2249,7 @@ static int __devinit snd_ali_create(snd_card_t * card,
 		return -ENXIO;
 	}
 
-	if ((codec = kcalloc(1, sizeof(*codec), GFP_KERNEL)) == NULL) {
+	if ((codec = kzalloc(sizeof(*codec), GFP_KERNEL)) == NULL) {
 		pci_disable_device(pci);
 		return -ENOMEM;
 	}