Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

2 files changed, 33 insertions, 24 deletions

diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c
index e87b427d5e43..c990f87b107a 100644
--- a/drivers/net/wireless/b43legacy/dma.c
+++ b/drivers/net/wireless/b43legacy/dma.c
@@ -393,11 +393,11 @@ dma_addr_t map_descbuffer(struct b43legacy_dmaring *ring,
 	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_dmaring *ring,
 		      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 b43legacy_dmaring *ring,
 {
 	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 b43legacy_dmaring *ring,
 {
 	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 b43legacy_dmaring *ring,
 
 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 b43legacy_dmaring *ring)
 
 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);
 }
 
@@ -585,8 +585,9 @@ static int b43legacy_dmacontroller_tx_reset(struct b43legacy_wldev *dev,
 
 /* Check if a DMA mapping address is invalid. */
 static bool b43legacy_dma_mapping_error(struct b43legacy_dmaring *ring,
-					dma_addr_t addr,
-					size_t buffersize)
+					 dma_addr_t addr,
+					 size_t buffersize,
+					 bool dma_to_device)
 {
 	if (unlikely(dma_mapping_error(addr)))
 		return 1;
@@ -594,11 +595,11 @@ static bool b43legacy_dma_mapping_error(struct b43legacy_dmaring *ring,
 	switch (ring->type) {
 	case B43legacy_DMA_30BIT:
 		if ((u64)addr + buffersize > (1ULL << 30))
-			return 1;
+			goto address_error;
 		break;
 	case B43legacy_DMA_32BIT:
 		if ((u64)addr + buffersize > (1ULL << 32))
-			return 1;
+			goto address_error;
 		break;
 	case B43legacy_DMA_64BIT:
 		/* Currently we can't have addresses beyond 64 bits in the kernel. */
@@ -607,6 +608,12 @@ static bool b43legacy_dma_mapping_error(struct b43legacy_dmaring *ring,
 
 	/* The address is OK. */
 	return 0;
+
+address_error:
+	/* We can't support this address. Unmap it again. */
+	unmap_descbuffer(ring, addr, buffersize, dma_to_device);
+
+	return 1;
 }
 
 static int setup_rx_descbuffer(struct b43legacy_dmaring *ring,
@@ -626,7 +633,7 @@ static int setup_rx_descbuffer(struct b43legacy_dmaring *ring,
 		return -ENOMEM;
 	dmaaddr = map_descbuffer(ring, skb->data,
 				 ring->rx_buffersize, 0);
-	if (b43legacy_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize)) {
+	if (b43legacy_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize, 0)) {
 		/* ugh. try to realloc in zone_dma */
 		gfp_flags |= GFP_DMA;
 
@@ -639,7 +646,7 @@ static int setup_rx_descbuffer(struct b43legacy_dmaring *ring,
 					 ring->rx_buffersize, 0);
 	}
 
-	if (b43legacy_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize)) {
+	if (b43legacy_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize, 0)) {
 		dev_kfree_skb_any(skb);
 		return -EIO;
 	}
@@ -886,12 +893,12 @@ struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev,
 			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);
 
 		if (b43legacy_dma_mapping_error(ring, dma_test,
-					sizeof(struct b43legacy_txhdr_fw3))) {
+					sizeof(struct b43legacy_txhdr_fw3), 1)) {
 			/* ugh realloc */
 			kfree(ring->txhdr_cache);
 			ring->txhdr_cache = kcalloc(nr_slots,
@@ -900,17 +907,17 @@ struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev,
 			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);
 
 			if (b43legacy_dma_mapping_error(ring, dma_test,
-					sizeof(struct b43legacy_txhdr_fw3)))
+					sizeof(struct b43legacy_txhdr_fw3), 1))
 				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);
 	}
@@ -1235,7 +1242,7 @@ static int dma_tx_fragment(struct b43legacy_dmaring *ring,
 	meta_hdr->dmaaddr = map_descbuffer(ring, (unsigned char *)header,
 					   sizeof(struct b43legacy_txhdr_fw3), 1);
 	if (b43legacy_dma_mapping_error(ring, meta_hdr->dmaaddr,
-					sizeof(struct b43legacy_txhdr_fw3))) {
+					sizeof(struct b43legacy_txhdr_fw3), 1)) {
 		ring->current_slot = old_top_slot;
 		ring->used_slots = old_used_slots;
 		return -EIO;
@@ -1254,7 +1261,7 @@ static int dma_tx_fragment(struct b43legacy_dmaring *ring,
 
 	meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1);
 	/* create a bounce buffer in zone_dma on mapping failure. */
-	if (b43legacy_dma_mapping_error(ring, meta->dmaaddr, skb->len)) {
+	if (b43legacy_dma_mapping_error(ring, meta->dmaaddr, skb->len, 1)) {
 		bounce_skb = __dev_alloc_skb(skb->len, GFP_ATOMIC | GFP_DMA);
 		if (!bounce_skb) {
 			ring->current_slot = old_top_slot;
@@ -1268,7 +1275,7 @@ static int dma_tx_fragment(struct b43legacy_dmaring *ring,
 		skb = bounce_skb;
 		meta->skb = skb;
 		meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1);
-		if (b43legacy_dma_mapping_error(ring, meta->dmaaddr, skb->len)) {
+		if (b43legacy_dma_mapping_error(ring, meta->dmaaddr, skb->len, 1)) {
 			ring->current_slot = old_top_slot;
 			ring->used_slots = old_used_slots;
 			err = -EIO;
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 2422a5dab1d2..ef829ee8ffd4 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -1516,6 +1516,7 @@ static int b43legacy_request_firmware(struct b43legacy_wldev *dev)
 	}
 	if (!fw->initvals) {
 		switch (dev->phy.type) {
+		case B43legacy_PHYTYPE_B:
 		case B43legacy_PHYTYPE_G:
 			if ((rev >= 5) && (rev <= 10))
 				filename = "b0g0initvals5";
@@ -1533,6 +1534,7 @@ static int b43legacy_request_firmware(struct b43legacy_wldev *dev)
 	}
 	if (!fw->initvals_band) {
 		switch (dev->phy.type) {
+		case B43legacy_PHYTYPE_B:
 		case B43legacy_PHYTYPE_G:
 			if ((rev >= 5) && (rev <= 10))
 				filename = "b0g0bsinitvals5";