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-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 0cc7c305a7f..1713451a5cc 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;