[PATCH] Fix oops in MGA DRM on root bus.
From: David Woodhouse <dwmw2@infradead.org>
Date: 2005-11-19 23:20:04
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: David Woodhouse <dwmw2@infradead.org>
diff --git a/drivers/char/drm/mga_drv.c b/drivers/char/drm/mga_drv.c
--- a/drivers/char/drm/mga_drv.c
+++ b/drivers/char/drm/mga_drv.c@@ -161,7 +161,7 @@ static int mga_driver_device_is_agp(drm_ * device. */ - if ((pdev->device == 0x0525) + if ((pdev->device == 0x0525) && pdev->bus->self && && (pdev->bus->self->vendor == 0x3388) && (pdev->bus->self->device == 0x0021)) { return 0;
--
dwmw2