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path: root/drivers/pci/dmar.c
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Diffstat (limited to 'drivers/pci/dmar.c')
-rw-r--r--drivers/pci/dmar.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index 3de3a436a432..0157708d474d 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -36,6 +36,7 @@
#include <linux/tboot.h>
#include <linux/dmi.h>
#include <linux/slab.h>
+#include <asm/iommu_table.h>
#define PREFIX "DMAR: "
@@ -687,7 +688,7 @@ failed:
return 0;
}
-void __init detect_intel_iommu(void)
+int __init detect_intel_iommu(void)
{
int ret;
@@ -723,6 +724,8 @@ void __init detect_intel_iommu(void)
}
early_acpi_os_unmap_memory(dmar_tbl, dmar_tbl_size);
dmar_tbl = NULL;
+
+ return ret ? 1 : -ENODEV;
}
@@ -1455,3 +1458,4 @@ int __init dmar_ir_support(void)
return 0;
return dmar->flags & 0x1;
}
+IOMMU_INIT_POST(detect_intel_iommu);