vfio iommu type1: merge fix for get_user_pages_remote API change

Link: http://lkml.kernel.org/r/20161122210511.024ec341@canb.auug.org.au
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

drivers/vfio/vfio_iommu_type1.c

@@ -362,7 +362,7 @@ static int vaddr_get_pfn(struct mm_struct *mm, unsigned long vaddr,
 
 		down_read(&mm->mmap_sem);
 		ret = get_user_pages_remote(NULL, mm, vaddr, 1, flags, page,
-					    NULL);
+					    NULL, NULL);
 		up_read(&mm->mmap_sem);
 	}