ALSA: Clean up SG-buffer helper functions and macros

Clean up SG-buffer helper functions and macros.  Helpers take substream
as arguments now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 2 insertions, 10 deletions

diff --git a/sound/pci/emu10k1/memory.c b/sound/pci/emu10k1/memory.c
index e8ad56ed34fa..6a47672f930a 100644
--- a/sound/pci/emu10k1/memory.c
+++ b/sound/pci/emu10k1/memory.c
@@ -296,7 +296,6 @@ 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;
@@ -321,16 +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);