diff options
Diffstat (limited to 'target/linux/generic/patches-3.7/132-solos-dma.patch')
| -rw-r--r-- | target/linux/generic/patches-3.7/132-solos-dma.patch | 39 |
1 files changed, 5 insertions, 34 deletions
diff --git a/target/linux/generic/patches-3.7/132-solos-dma.patch b/target/linux/generic/patches-3.7/132-solos-dma.patch index c95ecbeb94..0b761eaa03 100644 --- a/target/linux/generic/patches-3.7/132-solos-dma.patch +++ b/target/linux/generic/patches-3.7/132-solos-dma.patch @@ -44,21 +44,6 @@ Date: Wed Dec 19 11:01:18 2012 +0000 Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> -commit cae49ede00ec3d0cda290b03fee55b72b49efc11 -Author: David Woodhouse <dwmw2@infradead.org> -Date: Tue Dec 11 14:57:14 2012 +0000 - - solos-pci: fix double-free of TX skb in DMA mode - - We weren't clearing card->tx_skb[port] when processing the TX done interrupt. - If there wasn't another skb ready to transmit immediately, this led to a - double-free because we'd free it *again* next time we did have a packet to - send. - - Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> - Cc: stable@kernel.org - Signed-off-by: David S. Miller <davem@davemloft.net> - == There is a typo here so we do a double lock instead of an unlock. @@ -314,21 +299,7 @@ solos-pci: add GPIO support for newer versions on Geos board if(card->fpga_version > LEGACY_BUFFERS) iowrite32(word, FLASH_BUF + i); else -@@ -945,10 +1069,11 @@ static uint32_t fpga_tx(struct solos_car - for (port = 0; tx_pending; tx_pending >>= 1, port++) { - if (tx_pending & 1) { - struct sk_buff *oldskb = card->tx_skb[port]; -- if (oldskb) -+ if (oldskb) { - pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr, - oldskb->len, PCI_DMA_TODEVICE); -- -+ card->tx_skb[port] = NULL; -+ } - spin_lock(&card->tx_queue_lock); - skb = skb_dequeue(&card->tx_queue[port]); - if (!skb) -@@ -960,7 +1085,12 @@ static uint32_t fpga_tx(struct solos_car +@@ -961,7 +1085,12 @@ static uint32_t fpga_tx(struct solos_car tx_started |= 1 << port; oldskb = skb; /* We're done with this skb already */ } else if (skb && card->using_dma) { @@ -342,7 +313,7 @@ solos-pci: add GPIO support for newer versions on Geos board skb->len, PCI_DMA_TODEVICE); card->tx_skb[port] = skb; iowrite32(SKB_CB(skb)->dma_addr, -@@ -1134,18 +1264,33 @@ static int fpga_probe(struct pci_dev *de +@@ -1135,18 +1264,33 @@ static int fpga_probe(struct pci_dev *de db_fpga_upgrade = db_firmware_upgrade = 0; } @@ -379,7 +350,7 @@ solos-pci: add GPIO support for newer versions on Geos board pci_set_drvdata(dev, card); tasklet_init(&card->tlet, solos_bh, (unsigned long)card); -@@ -1180,6 +1325,10 @@ static int fpga_probe(struct pci_dev *de +@@ -1181,6 +1325,10 @@ static int fpga_probe(struct pci_dev *de if (err) goto out_free_irq; @@ -390,7 +361,7 @@ solos-pci: add GPIO support for newer versions on Geos board return 0; out_free_irq: -@@ -1188,6 +1337,7 @@ static int fpga_probe(struct pci_dev *de +@@ -1189,6 +1337,7 @@ static int fpga_probe(struct pci_dev *de tasklet_kill(&card->tlet); out_unmap_both: @@ -398,7 +369,7 @@ solos-pci: add GPIO support for newer versions on Geos board pci_set_drvdata(dev, NULL); pci_iounmap(dev, card->buffers); out_unmap_config: -@@ -1290,11 +1440,16 @@ static void fpga_remove(struct pci_dev * +@@ -1291,11 +1440,16 @@ static void fpga_remove(struct pci_dev * iowrite32(1, card->config_regs + FPGA_MODE); (void)ioread32(card->config_regs + FPGA_MODE); |