Commit bd07ed2b authored by Dave Airlie's avatar Dave Airlie Committed by Dave Airlie

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

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: default avatarDavid Woodhouse <dwmw2@infradead.org>
Signed-off-by: default avatarDave Airlie <airlied@linux.ie>
parent 1778d55e
......@@ -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;
......
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