diff options
author | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
---|---|---|
committer | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
commit | 651dab4264e4ba0e563f5ff56f748127246e9065 (patch) | |
tree | 016630974bdcb00fe529b673f96d389e0fd6dc94 /sound/pci/trident/trident_memory.c | |
parent | 40b8606253552109815786e5d4b0de98782d31f5 (diff) | |
parent | 2e532d68a2b3e2aa6b19731501222069735c741c (diff) |
Merge commit 'linus/master' into merge-linus
Conflicts:
arch/x86/kvm/i8254.c
Diffstat (limited to 'sound/pci/trident/trident_memory.c')
-rw-r--r-- | sound/pci/trident/trident_memory.c | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/sound/pci/trident/trident_memory.c b/sound/pci/trident/trident_memory.c index 3fd7f1b29b0..f9779e23fe5 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); |