summaryrefslogtreecommitdiffstats
path: root/sound/pci/emu10k1/memory.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/pci/emu10k1/memory.c')
-rw-r--r--sound/pci/emu10k1/memory.c31
1 files changed, 15 insertions, 16 deletions
diff --git a/sound/pci/emu10k1/memory.c b/sound/pci/emu10k1/memory.c
index 7d379f5131fb..6a47672f930a 100644
--- a/sound/pci/emu10k1/memory.c
+++ b/sound/pci/emu10k1/memory.c
@@ -107,7 +107,8 @@ static int search_empty_map_area(struct snd_emu10k1 *emu, int npages, struct lis
list_for_each (pos, &emu->mapped_link_head) {
struct snd_emu10k1_memblk *blk = get_emu10k1_memblk(pos, mapped_link);
- snd_assert(blk->mapped_page >= 0, continue);
+ if (blk->mapped_page < 0)
+ continue;
size = blk->mapped_page - page;
if (size == npages) {
*nextp = pos;
@@ -295,15 +296,18 @@ struct snd_util_memblk *
snd_emu10k1_alloc_pages(struct snd_emu10k1 *emu, struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
struct snd_util_memhdr *hdr;
struct snd_emu10k1_memblk *blk;
int page, err, idx;
- snd_assert(emu, return NULL);
- snd_assert(runtime->dma_bytes > 0 && runtime->dma_bytes < MAXPAGES * EMUPAGESIZE, return NULL);
+ if (snd_BUG_ON(!emu))
+ return NULL;
+ if (snd_BUG_ON(runtime->dma_bytes <= 0 ||
+ runtime->dma_bytes >= MAXPAGES * EMUPAGESIZE))
+ return NULL;
hdr = emu->memhdr;
- snd_assert(hdr, return NULL);
+ if (snd_BUG_ON(!hdr))
+ return NULL;
mutex_lock(&hdr->block_mutex);
blk = search_empty(emu, runtime->dma_bytes);
@@ -316,16 +320,9 @@ snd_emu10k1_alloc_pages(struct snd_emu10k1 *emu, struct snd_pcm_substream *subst
*/
idx = 0;
for (page = blk->first_page; page <= blk->last_page; page++, idx++) {
+ unsigned long ofs = idx << PAGE_SHIFT;
dma_addr_t addr;
-#ifdef CONFIG_SND_DEBUG
- if (idx >= sgbuf->pages) {
- printk(KERN_ERR "emu: pages overflow! (%d-%d) for %d\n",
- blk->first_page, blk->last_page, sgbuf->pages);
- mutex_unlock(&hdr->block_mutex);
- return NULL;
- }
-#endif
- addr = sgbuf->table[idx].addr;
+ addr = snd_pcm_sgbuf_get_addr(substream, ofs);
if (! is_valid_page(emu, addr)) {
printk(KERN_ERR "emu: failure page = %d\n", idx);
mutex_unlock(&hdr->block_mutex);
@@ -353,7 +350,8 @@ snd_emu10k1_alloc_pages(struct snd_emu10k1 *emu, struct snd_pcm_substream *subst
*/
int snd_emu10k1_free_pages(struct snd_emu10k1 *emu, struct snd_util_memblk *blk)
{
- snd_assert(emu && blk, return -EINVAL);
+ if (snd_BUG_ON(!emu || !blk))
+ return -EINVAL;
return snd_emu10k1_synth_free(emu, blk);
}
@@ -498,7 +496,8 @@ static int synth_free_pages(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *
static inline void *offset_ptr(struct snd_emu10k1 *emu, int page, int offset)
{
char *ptr;
- snd_assert(page >= 0 && page < emu->max_cache_pages, return NULL);
+ if (snd_BUG_ON(page < 0 || page >= emu->max_cache_pages))
+ return NULL;
ptr = emu->page_ptr_table[page];
if (! ptr) {
printk(KERN_ERR "emu10k1: access to NULL ptr: page = %d\n", page);