iommu/vt-d: Use dev_err(..) in intel_svm_device_to_iommu(..)
This will give a little bit of assistance to those developing drivers using SVM. It might cause a slight annoyance to end-users whose kernel disables the IOMMU when drivers are trying to use it. But the fix there is to fix the kernel to enable the IOMMU. Signed-off-by: NSudeep Dutt <sudeep.dutt@intel.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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