iommu/amd: Do not BUG_ON in __detach_device()
The condition in the BUG_ON is an indicator of a BUG, but no reason to kill the code path. Turn it into a WARN_ON and bail out if it is hit. Signed-off-by: Joerg Roedel <jroedel@suse.de>
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@ -2204,7 +2204,8 @@ static void __detach_device(struct iommu_dev_data *dev_data)
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struct protection_domain *domain;
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unsigned long flags;
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BUG_ON(!dev_data->domain);
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if (WARN_ON(!dev_data->domain))
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return;
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domain = dev_data->domain;
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