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path: root/sound/pci/trident/trident_memory.c
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Diffstat (limited to 'sound/pci/trident/trident_memory.c')
-rw-r--r--sound/pci/trident/trident_memory.c37
1 files changed, 20 insertions, 17 deletions
diff --git a/sound/pci/trident/trident_memory.c b/sound/pci/trident/trident_memory.c
index 3fd7f1b29b0f..f9779e23fe57 100644
--- a/sound/pci/trident/trident_memory.c
+++ b/sound/pci/trident/trident_memory.c
@@ -194,11 +194,14 @@ snd_trident_alloc_sg_pages(struct snd_trident *trident,
struct snd_util_memblk *blk;
struct snd_pcm_runtime *runtime = substream->runtime;
int idx, page;
- struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
- snd_assert(runtime->dma_bytes > 0 && runtime->dma_bytes <= SNDRV_TRIDENT_MAX_PAGES * SNDRV_TRIDENT_PAGE_SIZE, return NULL);
+ if (snd_BUG_ON(runtime->dma_bytes <= 0 ||
+ runtime->dma_bytes > SNDRV_TRIDENT_MAX_PAGES *
+ SNDRV_TRIDENT_PAGE_SIZE))
+ return NULL;
hdr = trident->tlb.memhdr;
- snd_assert(hdr != NULL, return NULL);
+ if (snd_BUG_ON(!hdr))
+ return NULL;
@@ -208,18 +211,14 @@ snd_trident_alloc_sg_pages(struct snd_trident *trident,
mutex_unlock(&hdr->block_mutex);
return NULL;
}
- if (lastpg(blk) - firstpg(blk) >= sgbuf->pages) {
- snd_printk(KERN_ERR "page calculation doesn't match: allocated pages = %d, trident = %d/%d\n", sgbuf->pages, firstpg(blk), lastpg(blk));
- __snd_util_mem_free(hdr, blk);
- mutex_unlock(&hdr->block_mutex);
- return NULL;
- }
/* set TLB entries */
idx = 0;
for (page = firstpg(blk); page <= lastpg(blk); page++, idx++) {
- dma_addr_t addr = sgbuf->table[idx].addr;
- unsigned long ptr = (unsigned long)sgbuf->table[idx].buf;
+ unsigned long ofs = idx << PAGE_SHIFT;
+ dma_addr_t addr = snd_pcm_sgbuf_get_addr(substream, ofs);
+ unsigned long ptr = (unsigned long)
+ snd_pcm_sgbuf_get_ptr(substream, ofs);
if (! is_valid_page(addr)) {
__snd_util_mem_free(hdr, blk);
mutex_unlock(&hdr->block_mutex);
@@ -245,9 +244,13 @@ snd_trident_alloc_cont_pages(struct snd_trident *trident,
dma_addr_t addr;
unsigned long ptr;
- snd_assert(runtime->dma_bytes> 0 && runtime->dma_bytes <= SNDRV_TRIDENT_MAX_PAGES * SNDRV_TRIDENT_PAGE_SIZE, return NULL);
+ if (snd_BUG_ON(runtime->dma_bytes <= 0 ||
+ runtime->dma_bytes > SNDRV_TRIDENT_MAX_PAGES *
+ SNDRV_TRIDENT_PAGE_SIZE))
+ return NULL;
hdr = trident->tlb.memhdr;
- snd_assert(hdr != NULL, return NULL);
+ if (snd_BUG_ON(!hdr))
+ return NULL;
mutex_lock(&hdr->block_mutex);
blk = search_empty(hdr, runtime->dma_bytes);
@@ -279,8 +282,8 @@ struct snd_util_memblk *
snd_trident_alloc_pages(struct snd_trident *trident,
struct snd_pcm_substream *substream)
{
- snd_assert(trident != NULL, return NULL);
- snd_assert(substream != NULL, return NULL);
+ if (snd_BUG_ON(!trident || !substream))
+ return NULL;
if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV_SG)
return snd_trident_alloc_sg_pages(trident, substream);
else
@@ -297,8 +300,8 @@ int snd_trident_free_pages(struct snd_trident *trident,
struct snd_util_memhdr *hdr;
int page;
- snd_assert(trident != NULL, return -EINVAL);
- snd_assert(blk != NULL, return -EINVAL);
+ if (snd_BUG_ON(!trident || !blk))
+ return -EINVAL;
hdr = trident->tlb.memhdr;
mutex_lock(&hdr->block_mutex);