1 files changed, 20 insertions, 32 deletions

diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 3733351a27f2..1b3534d67686 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -43,14 +43,6 @@ 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);
-
-/*
- */
-
 static DEFINE_MUTEX(list_mutex);
 static LIST_HEAD(mem_list_head);
 
@@ -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;