AcoSail/kernel_optimize_test
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I think that if a PCI bus is a root bus, attached to a host bridge not a

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PCI->PCI bridge, then bus->self is allowed to be NULL. Certainly that's
the case on my Pegasos, and it makes the MGA DRM driver oops...

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Dave Airlie 2005-11-23 21:45:43 +11:00 committed by Dave Airlie
parent 1778d55edb
commit bd07ed2b4d
1 changed files with 1 additions and 1 deletions
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2
drivers/char/drm/mga_drv.c
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@ -161,7 +161,7 @@ static int mga_driver_device_is_agp(drm_device_t * dev)
* device.
*/
if ((pdev->device == 0x0525)
if ((pdev->device == 0x0525) && pdev->bus->self
&& (pdev->bus->self->vendor == 0x3388)
&& (pdev->bus->self->device == 0x0021)) {
return 0;