Index: alsa-kernel/pci/via82xx.c
===================================================================
RCS file: /suse/tiwai/cvs/alsa/alsa-kernel/pci/via82xx.c,v
retrieving revision 1.21
diff -u -r1.21 via82xx.c
--- alsa-kernel/pci/via82xx.c	22 Jan 2003 14:21:05 -0000	1.21
+++ alsa-kernel/pci/via82xx.c	23 Jan 2003 09:40:01 -0000
@@ -232,6 +232,7 @@
 	struct snd_via_sg_table *idx_table;
 	/* for recovery from the unexpected pointer */
 	unsigned int lastpos;
+	unsigned int lastidx;
 	unsigned int bufsize;
 	unsigned int bufsize2;
 };
@@ -485,6 +486,7 @@
 	outb(0x00, port + VIA_REG_OFFSET_TYPE); /* for via686 */
 	outl(0, port + VIA_REG_OFFSET_CURR_PTR);
 	viadev->lastpos = 0;
+	viadev->lastidx = 0;
 }
 
 
@@ -589,17 +591,26 @@
 #endif
 		/* count register returns full size when end of buffer is reached */
 		if (size != count) {
-			snd_printd(KERN_ERR "invalid via82xx_cur_ptr, using last valid pointer\n");
-			res = viadev->lastpos;
+			/* assume the next index */
+			idx = viadev->lastidx + 1;
+			if (idx >= viadev->tbl_entries)
+				idx = 0;
+			size = viadev->idx_table[idx].size;
+			res = viadev->idx_table[idx].offset + size - count;
+			if (res < viadev->lastpos && (res >= viadev->bufsize2 || viadev->lastpos < viadev->bufsize2)) {
+				snd_printd(KERN_ERR "invalid via82xx_cur_ptr, using last valid pointer\n");
+				return viadev->lastpos;
+			}
 		} else {
 			res = viadev->idx_table[idx].offset + size;
 			if (res < viadev->lastpos && (res >= viadev->bufsize2 || viadev->lastpos < viadev->bufsize2)) {
 				snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), using last valid pointer\n");
-				res = viadev->lastpos;
+				return viadev->lastpos;
 			}
 		}
 	}
 	viadev->lastpos = res; /* remember the last positiion */
+	viadev->lastidx = idx;
 	if (res >= viadev->bufsize)
 		res -= viadev->bufsize;
 	return res;
@@ -648,7 +659,7 @@
 		return 0;
 	spin_lock(&chip->reg_lock);
 	count = inl(VIAREG(chip, OFFSET_CURR_COUNT) + viadev->reg_offset);
-	idx = count >> 24;
+	idx = (count >> 24) & viadev->tbl_entries;
 	count &= 0xffffff;
 	res = calc_linear_pos(viadev, idx, count);
 	spin_unlock(&chip->reg_lock);