diff options
Diffstat (limited to 'sound/pci/trident/trident_memory.c')
| -rw-r--r-- | sound/pci/trident/trident_memory.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/sound/pci/trident/trident_memory.c b/sound/pci/trident/trident_memory.c index 4a36f194c7f8..81f6348191dc 100644 --- a/sound/pci/trident/trident_memory.c +++ b/sound/pci/trident/trident_memory.c @@ -172,12 +172,10 @@ snd_trident_alloc_sg_pages(struct snd_trident *trident, - mutex_lock(&hdr->block_mutex); + guard(mutex)(&hdr->block_mutex); blk = search_empty(hdr, runtime->dma_bytes); - if (blk == NULL) { - mutex_unlock(&hdr->block_mutex); + if (blk == NULL) return NULL; - } /* set TLB entries */ idx = 0; @@ -186,12 +184,10 @@ snd_trident_alloc_sg_pages(struct snd_trident *trident, dma_addr_t addr = snd_pcm_sgbuf_get_addr(substream, ofs); if (!is_valid_page(trident, addr)) { __snd_util_mem_free(hdr, blk); - mutex_unlock(&hdr->block_mutex); return NULL; } set_tlb_bus(trident, page, addr); } - mutex_unlock(&hdr->block_mutex); return blk; } @@ -216,12 +212,10 @@ snd_trident_alloc_cont_pages(struct snd_trident *trident, if (snd_BUG_ON(!hdr)) return NULL; - mutex_lock(&hdr->block_mutex); + guard(mutex)(&hdr->block_mutex); blk = search_empty(hdr, runtime->dma_bytes); - if (blk == NULL) { - mutex_unlock(&hdr->block_mutex); + if (blk == NULL) return NULL; - } /* set TLB entries */ addr = runtime->dma_addr; @@ -229,12 +223,10 @@ snd_trident_alloc_cont_pages(struct snd_trident *trident, addr += SNDRV_TRIDENT_PAGE_SIZE) { if (!is_valid_page(trident, addr)) { __snd_util_mem_free(hdr, blk); - mutex_unlock(&hdr->block_mutex); return NULL; } set_tlb_bus(trident, page, addr); } - mutex_unlock(&hdr->block_mutex); return blk; } @@ -267,12 +259,11 @@ int snd_trident_free_pages(struct snd_trident *trident, return -EINVAL; hdr = trident->tlb.memhdr; - mutex_lock(&hdr->block_mutex); + guard(mutex)(&hdr->block_mutex); /* reset TLB entries */ for (page = firstpg(blk); page <= lastpg(blk); page++) set_silent_tlb(trident, page); /* free memory block */ __snd_util_mem_free(hdr, blk); - mutex_unlock(&hdr->block_mutex); return 0; } |