mv643xx_eth: fix receive buffer DMA unmapping
When tearing down a DMA mapping for a receive buffer, we should pass
dma_unmap_single() the exact same address that dma_map_single() gave
us when we originally set up the mapping.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index deee66d..ad2ae93 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -559,7 +559,7 @@
spin_unlock_irqrestore(&mp->lock, flags);
- dma_unmap_single(NULL, rx_desc->buf_ptr + 2,
+ dma_unmap_single(NULL, rx_desc->buf_ptr,
rx_desc->buf_size, DMA_FROM_DEVICE);
rxq->rx_desc_count--;
rx++;