X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=sound%2Fcore%2Fmemalloc.c;h=1b3534d67686d407992b7f712306c43d87e29863;hb=45a9524a61267a60aef3c273b97284e93b15f4d7;hp=3733351a27f218f7678dde1e16c4b151b7a470b5;hpb=98d86c091534f35c4bab294451ae6bccab8e9075;p=linux-2.6-omap-h63xx.git

diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 3733351a27f..1b3534d6768 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -40,14 +40,6 @@ MODULE_DESCRIPTION("Memory allocator for ALSA system.");
 MODULE_LICENSE("GPL");
 
 
-/*
- */
-
-void *snd_malloc_sgbuf_pages(struct device *device,
-                             size_t size, struct snd_dma_buffer *dmab,
-			     size_t *res_size);
-int snd_free_sgbuf_pages(struct snd_dma_buffer *dmab);
-
 /*
  */
 
@@ -64,18 +56,6 @@ struct snd_mem_list {
 /* id for pre-allocated buffers */
 #define SNDRV_DMA_DEVICE_UNUSED (unsigned int)-1
 
-#ifdef CONFIG_SND_DEBUG
-#define __ASTRING__(x) #x
-#define snd_assert(expr, args...) do {\
-	if (!(expr)) {\
-		printk(KERN_ERR "snd-malloc: BUG? (%s) (called from %p)\n", __ASTRING__(expr), __builtin_return_address(0));\
-		args;\
-	}\
-} while (0)
-#else
-#define snd_assert(expr, args...) /**/
-#endif
-
 /*
  *
  *  Generic memory allocators
@@ -108,8 +88,10 @@ void *snd_malloc_pages(size_t size, gfp_t gfp_flags)
 	int pg;
 	void *res;
 
-	snd_assert(size > 0, return NULL);
-	snd_assert(gfp_flags != 0, return NULL);
+	if (WARN_ON(!size))
+		return NULL;
+	if (WARN_ON(!gfp_flags))
+		return NULL;
 	gfp_flags |= __GFP_COMP;	/* compound page lets parts be mapped */
 	pg = get_order(size);
 	if ((res = (void *) __get_free_pages(gfp_flags, pg)) != NULL)
@@ -149,8 +131,8 @@ static void *snd_malloc_dev_pages(struct device *dev, size_t size, dma_addr_t *d
 	void *res;
 	gfp_t gfp_flags;
 
-	snd_assert(size > 0, return NULL);
-	snd_assert(dma != NULL, return NULL);
+	if (WARN_ON(!dma))
+		return NULL;
 	pg = get_order(size);
 	gfp_flags = GFP_KERNEL
 		| __GFP_COMP	/* compound page lets parts be mapped */
@@ -200,8 +182,10 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr,
 int snd_dma_alloc_pages(int type, struct device *device, size_t size,
 			struct snd_dma_buffer *dmab)
 {
-	snd_assert(size > 0, return -ENXIO);
-	snd_assert(dmab != NULL, return -ENXIO);
+	if (WARN_ON(!size))
+		return -ENXIO;
+	if (WARN_ON(!dmab))
+		return -ENXIO;
 
 	dmab->dev.type = type;
 	dmab->dev.dev = device;
@@ -251,15 +235,17 @@ int snd_dma_alloc_pages_fallback(int type, struct device *device, size_t size,
 {
 	int err;
 
-	snd_assert(size > 0, return -ENXIO);
-	snd_assert(dmab != NULL, return -ENXIO);
-
 	while ((err = snd_dma_alloc_pages(type, device, size, dmab)) < 0) {
+		size_t aligned_size;
 		if (err != -ENOMEM)
 			return err;
-		size >>= 1;
 		if (size <= PAGE_SIZE)
 			return -ENOMEM;
+		aligned_size = PAGE_SIZE << get_order(size);
+		if (size != aligned_size)
+			size = aligned_size;
+		else
+			size >>= 1;
 	}
 	if (! dmab->area)
 		return -ENOMEM;
@@ -307,7 +293,8 @@ size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id)
 {
 	struct snd_mem_list *mem;
 
-	snd_assert(dmab, return 0);
+	if (WARN_ON(!dmab))
+		return 0;
 
 	mutex_lock(&list_mutex);
 	list_for_each_entry(mem, &mem_list_head, list) {
@@ -341,7 +328,8 @@ int snd_dma_reserve_buf(struct snd_dma_buffer *dmab, unsigned int id)
 {
 	struct snd_mem_list *mem;
 
-	snd_assert(dmab, return -EINVAL);
+	if (WARN_ON(!dmab))
+		return -EINVAL;
 	mem = kmalloc(sizeof(*mem), GFP_KERNEL);
 	if (! mem)
 		return -ENOMEM;