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authorDave Airlie <airlied@starflyer.(none)>2005-11-23 21:45:43 +1100
committerDave Airlie <airlied@linux.ie>2005-11-23 21:45:43 +1100
commitbd07ed2b4d7071716c09895e19849e8b04991656 (patch)
tree41aebda6814e358c6afc27b1f00dbe21355e5eaa /drivers
parent1778d55edb62753a92b979fa57072c2e1ff3d062 (diff)
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> Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/char/drm/mga_drv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/drm/mga_drv.c b/drivers/char/drm/mga_drv.c
index 0cc7c305a7f6..1713451a5cc6 100644
--- 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_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;