diff --git a/[refs] b/[refs]
index 60c348198029..d81b69e82591 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f5325094379158e6b876ea0010c807bf7890ec8f
+refs/heads/master: d3ad9373b7c29b63d5e8460a69453718d200cc3b
diff --git a/trunk/arch/x86/kernel/amd_iommu.c b/trunk/arch/x86/kernel/amd_iommu.c
index 751ce73c6e1b..adb0ba025702 100644
--- a/trunk/arch/x86/kernel/amd_iommu.c
+++ b/trunk/arch/x86/kernel/amd_iommu.c
@@ -1511,9 +1511,11 @@ static void __detach_device(struct device *dev)
 
 	/*
 	 * If we run in passthrough mode the device must be assigned to the
-	 * passthrough domain if it is detached from any other domain
+	 * passthrough domain if it is detached from any other domain.
+	 * Make sure we can deassign from the pt_domain itself.
 	 */
-	if (iommu_pass_through && dev_data->domain == NULL)
+	if (iommu_pass_through &&
+	    (dev_data->domain == NULL && domain != pt_domain))
 		__attach_device(dev, pt_domain);
 }