Index: drivers/sound/via82cxxx_audio.c
===================================================================
RCS file: /cvsroot/gkernel/linux_2_4/drivers/sound/via82cxxx_audio.c,v
retrieving revision 1.1.1.6.4.1
diff -u -r1.1.1.6.4.1 via82cxxx_audio.c
--- drivers/sound/via82cxxx_audio.c	2000/10/27 08:21:41	1.1.1.6.4.1
+++ drivers/sound/via82cxxx_audio.c	2000/10/30 19:57:21
@@ -226,6 +226,7 @@
 struct via_sgd_data {
 	dma_addr_t handle;
 	void *cpuaddr;
+	struct page *page;
 };
 
 
@@ -626,6 +627,7 @@
 
 		if (!chan->sgbuf[i].cpuaddr)
 			goto err_out_nomem;
+		chan->sgbuf[i].page = virt_to_page (chan->sgbuf[i].cpuaddr);
 
 		if (i < (VIA_DMA_BUFFERS - 1))
 			chan->sgtable[i].count = cpu_to_le32 (VIA_DMA_BUF_SIZE | VIA_FLAG);
@@ -722,6 +724,7 @@
 					     chan->sgbuf[i].handle);
 			chan->sgbuf[i].cpuaddr = NULL;
 			chan->sgbuf[i].handle = 0;
+			chan->sgbuf[i].page = NULL;
 		}
 
 	if (chan->sgtable) {
@@ -1717,9 +1720,11 @@
 	} else if (!wr)
 		chan = &card->ch_in;
 
+	assert (chan->sgbuf[pgoff].cpuaddr != NULL);
+	assert (chan->sgbuf[pgoff].page != NULL);
 	assert ((((unsigned long)chan->sgbuf[pgoff].cpuaddr) % PAGE_SIZE) == 0);
 
-	dmapage = virt_to_page (chan->sgbuf[pgoff].cpuaddr);
+	dmapage = chan->sgbuf[pgoff].page;
 	DPRINTK ("EXIT, returning page %p for cpuaddr %lXh\n",
 		 dmapage, (unsigned long) chan->sgbuf[pgoff].cpuaddr);
 	get_page (dmapage);