Add a sanity check for the video RAM size. It should fit into the PCI window.
Signed-off-by: Aaro Koskinen <[email protected]> --- drivers/staging/xgifb/XGI_main_26.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c index ba6c347..98b8b09 100644 --- a/drivers/staging/xgifb/XGI_main_26.c +++ b/drivers/staging/xgifb/XGI_main_26.c @@ -1700,6 +1700,7 @@ static int __devinit xgifb_probe(struct pci_dev *pdev, struct fb_info *fb_info; struct xgifb_video_info *xgifb_info; struct xgi_hw_device_info *hw_info; + unsigned long video_size_max; fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev); if (!fb_info) @@ -1720,6 +1721,7 @@ static int __devinit xgifb_probe(struct pci_dev *pdev, xgifb_info->subsysvendor = pdev->subsystem_vendor; xgifb_info->subsysdevice = pdev->subsystem_device; + video_size_max = pci_resource_len(pdev, 0); xgifb_info->video_base = pci_resource_start(pdev, 0); xgifb_info->mmio_base = pci_resource_start(pdev, 1); xgifb_info->mmio_size = pci_resource_len(pdev, 1); @@ -1780,6 +1782,8 @@ static int __devinit xgifb_probe(struct pci_dev *pdev, "Fatal error: Unable to determine RAM size.\n"); ret = -ENODEV; goto error_disable; + } else if (xgifb_info->video_size > video_size_max) { + xgifb_info->video_size = video_size_max; } /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE */ -- 1.7.2.5 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
