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agp/intel: put back check that we have a driver for the bridge. 

On my 945 laptop + radeon GPU, I was getting an oops on boot without this
check which seems to have gotten dropped in the rework.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2010-04-20 16:34:20 +10:00
parent d4b74bf078
commit 10fd883ce3
1 changed files with 8 additions and 0 deletions
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8
drivers/char/agp/intel-agp.c
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@ -885,6 +885,14 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
return -ENODEV;
}
if (!bridge->driver) {
if (cap_ptr)
dev_warn(&pdev->dev, "can't find bridge device (chip_id: %04x)\n",
intel_agp_chipsets[i].gmch_chip_id);
agp_put_bridge(bridge);
return -ENODEV;
}
bridge->dev = pdev;
bridge->dev_private_data = NULL;