UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Ben Hutchings 2011-03-28 17:12:52 +00:00 committed by David S. Miller
parent abc45592bc
commit fd1d9188f2
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/net/irda/via-ircc.c
View File

@ -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);