1 files changed, 3 insertions, 4 deletions

diff --git a/sound/pci/au88x0/au88x0_core.c b/sound/pci/au88x0/au88x0_core.c
index 3906f5afe27a..f84bb19c7fdd 100644
--- a/sound/pci/au88x0/au88x0_core.c
+++ b/sound/pci/au88x0/au88x0_core.c
@@ -1255,8 +1255,8 @@ static int inline vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma)
         int temp;
 
         temp = hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2));
-        temp = (dma->period_virt * dma->period_bytes) + (temp & POS_MASK);
-        return (temp);
+        temp = (dma->period_virt * dma->period_bytes) + (temp & (dma->period_bytes - 1));
+        return temp;
 }
 
 static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma)
@@ -1504,8 +1504,7 @@ static int inline vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma)
         int temp;
 
         temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
-        //temp = (temp & POS_MASK) + (((temp>>WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK)*(dma->cfg0&POS_MASK));
-        temp = (temp & POS_MASK) + ((dma->period_virt) * (dma->period_bytes));
+        temp = (dma->period_virt * dma->period_bytes) + (temp & (dma->period_bytes - 1));
         return temp;
 }