x86/amd-iommu: Allow dev_data->alias to be NULL

Let dev_data->alias be just NULL if the device has no alias.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel 2011-06-09 17:48:39 +02:00
commit 2b02b091ab