via-ircc: Pass PCI device pointer to dma_{alloc, free}_coherent()

via-ircc has been passing a NULL pointer to DMA allocation functions,
which is completely invalid and results in a BUG on PowerPC.  Now
that we always have the device pointer available, pass it in.

Reference: http://bugs.debian.org/619450
Reported-by: Andrew Buckeridge <andrewb@bgc.com.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Andrew Buckeridge <andrewb@bgc.com.au> [against 2.6.32]
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/irda/via-ircc.c b/drivers/net/irda/via-ircc.c
index cc6faca..186cd28 100644 (file)
--- a/drivers/net/irda/via-ircc.c
+++ b/drivers/net/irda/via-ircc.c
@@ -363,7 +363,7 @@ static __devinit int via_ircc_open(struct pci_dev *pdev, chipio_t * info,
 
        /* Allocate memory if needed */
        self->rx_buff.head =
-               dma_alloc_coherent(NULL, self->rx_buff.truesize,
+               dma_alloc_coherent(&pdev->dev, self->rx_buff.truesize,
                                   &self->rx_buff_dma, GFP_KERNEL);
        if (self->rx_buff.head == NULL) {
                err = -ENOMEM;
@@ -372,7 +372,7 @@ static __devinit int via_ircc_open(struct pci_dev *pdev, chipio_t * info,
        memset(self->rx_buff.head, 0, self->rx_buff.truesize);
 
        self->tx_buff.head =
-               dma_alloc_coherent(NULL, self->tx_buff.truesize,
+               dma_alloc_coherent(&pdev->dev, self->tx_buff.truesize,
                                   &self->tx_buff_dma, GFP_KERNEL);
        if (self->tx_buff.head == NULL) {
                err = -ENOMEM;
@@ -404,10 +404,10 @@ static __devinit int via_ircc_open(struct pci_dev *pdev, chipio_t * info,
        via_hw_init(self);
        return 0;
  err_out4:
-       dma_free_coherent(NULL, self->tx_buff.truesize,
+       dma_free_coherent(&pdev->dev, self->tx_buff.truesize,
                          self->tx_buff.head, self->tx_buff_dma);
  err_out3:
-       dma_free_coherent(NULL, self->rx_buff.truesize,
+       dma_free_coherent(&pdev->dev, self->rx_buff.truesize,
                          self->rx_buff.head, self->rx_buff_dma);
  err_out2:
        release_region(self->io.fir_base, self->io.fir_ext);
@@ -441,10 +441,10 @@ static void __devexit via_remove_one(struct pci_dev *pdev)
                   __func__, self->io.fir_base);
        release_region(self->io.fir_base, self->io.fir_ext);
        if (self->tx_buff.head)
-               dma_free_coherent(NULL, self->tx_buff.truesize,
+               dma_free_coherent(&pdev->dev, self->tx_buff.truesize,
                                  self->tx_buff.head, self->tx_buff_dma);
        if (self->rx_buff.head)
-               dma_free_coherent(NULL, self->rx_buff.truesize,
+               dma_free_coherent(&pdev->dev, self->rx_buff.truesize,
                                  self->rx_buff.head, self->rx_buff_dma);
        pci_set_drvdata(pdev, NULL);