[Xen-devel] [PATCH] VT-d: change bogus return value of intel_iommu_lookup_page()

["Jan Beulich" <JBeulich@xxxxxxxx>]

The function passes 0 as "alloc" argument to addr_to_dma_page_maddr(),
so -ENOMEM simply makes no sense (and its use was probably simply a
copy-and-paste effect originating at intel_iommu_map_page()).

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/drivers/passthrough/vtd/iommu.c
+++ b/xen/drivers/passthrough/vtd/iommu.c
@@ -1870,7 +1870,7 @@ static int intel_iommu_lookup_page(struc
     if ( !pg_maddr )
     {
         spin_unlock(&hd->arch.mapping_lock);
-        return -ENOMEM;
+        return -ENOENT;
     }
 
     page = map_vtd_domain_page(pg_maddr);



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