b43legacy: Fix usage of struct device used for DMAing

Index: wireless-testing/drivers/net/wireless/b43legacy/dma.c
===================================================================
@@ -393,11 +393,11 @@ dma_addr_t map_descbuffer(struct b43lega
 	dma_addr_t dmaaddr;
 
 	if (tx)
-		dmaaddr = dma_map_single(ring->dev->dev->dev,
+		dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
 					 buf, len,
 					 DMA_TO_DEVICE);
 	else
-		dmaaddr = dma_map_single(ring->dev->dev->dev,
+		dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
 					 buf, len,
 					 DMA_FROM_DEVICE);
 

@@ -411,11 +411,11 @@ void unmap_descbuffer(struct b43legacy_d
 		      int tx)
 {
 	if (tx)
-		dma_unmap_single(ring->dev->dev->dev,
+		dma_unmap_single(ring->dev->dev->dma_dev,
 				 addr, len,
 				 DMA_TO_DEVICE);
 	else
-		dma_unmap_single(ring->dev->dev->dev,
+		dma_unmap_single(ring->dev->dev->dma_dev,
 				 addr, len,
 				 DMA_FROM_DEVICE);
 }

@@ -427,7 +427,7 @@ void sync_descbuffer_for_cpu(struct b43l
 {
 	B43legacy_WARN_ON(ring->tx);
 
-	dma_sync_single_for_cpu(ring->dev->dev->dev,
+	dma_sync_single_for_cpu(ring->dev->dev->dma_dev,
 				addr, len, DMA_FROM_DEVICE);
 }
 

@@ -438,7 +438,7 @@ void sync_descbuffer_for_device(struct b
 {
 	B43legacy_WARN_ON(ring->tx);
 
-	dma_sync_single_for_device(ring->dev->dev->dev,
+	dma_sync_single_for_device(ring->dev->dev->dma_dev,
 				   addr, len, DMA_FROM_DEVICE);
 }
 

@@ -458,9 +458,9 @@ void free_descriptor_buffer(struct b43le
 
 static int alloc_ringmemory(struct b43legacy_dmaring *ring)
 {
-	struct device *dev = ring->dev->dev->dev;
+	struct device *dma_dev = ring->dev->dev->dma_dev;
 
-	ring->descbase = dma_alloc_coherent(dev, B43legacy_DMA_RINGMEMSIZE,
+	ring->descbase = dma_alloc_coherent(dma_dev, B43legacy_DMA_RINGMEMSIZE,
 					    &(ring->dmabase), GFP_KERNEL);
 	if (!ring->descbase) {
 		b43legacyerr(ring->dev->wl, "DMA ringmemory allocation"

@@ -474,9 +474,9 @@ static int alloc_ringmemory(struct b43le
 
 static void free_ringmemory(struct b43legacy_dmaring *ring)
 {
-	struct device *dev = ring->dev->dev->dev;
+	struct device *dma_dev = ring->dev->dev->dma_dev;
 
-	dma_free_coherent(dev, B43legacy_DMA_RINGMEMSIZE,
+	dma_free_coherent(dma_dev, B43legacy_DMA_RINGMEMSIZE,
 			  ring->descbase, ring->dmabase);
 }
 

@@ -886,7 +886,7 @@ struct b43legacy_dmaring *b43legacy_setu
 			goto err_kfree_meta;
 
 		/* test for ability to dma to txhdr_cache */
-		dma_test = dma_map_single(dev->dev->dev, ring->txhdr_cache,
+		dma_test = dma_map_single(dev->dev->dma_dev, ring->txhdr_cache,
 					  sizeof(struct b43legacy_txhdr_fw3),
 					  DMA_TO_DEVICE);
 

@@ -900,7 +900,7 @@ struct b43legacy_dmaring *b43legacy_setu
 			if (!ring->txhdr_cache)
 				goto err_kfree_meta;
 
-			dma_test = dma_map_single(dev->dev->dev,
+			dma_test = dma_map_single(dev->dev->dma_dev,
 					ring->txhdr_cache,
 					sizeof(struct b43legacy_txhdr_fw3),
 					DMA_TO_DEVICE);

@@ -910,7 +910,7 @@ struct b43legacy_dmaring *b43legacy_setu
 				goto err_kfree_txhdr_cache;
 		}
 
-		dma_unmap_single(dev->dev->dev,
+		dma_unmap_single(dev->dev->dma_dev,
 				 dma_test, sizeof(struct b43legacy_txhdr_fw3),
 				 DMA_TO_DEVICE);
 	}