Commit 59203379 authored Jan 04, 2016 by Nicholas Krause Committed by Joerg Roedel Jan 07, 2016

iommu/vt-d: Check the return value of iommu_device_create()



This adds the proper check to alloc_iommu to make sure that
the call to iommu_device_create has completed successfully
and if not return the error code to the caller after freeing
up resources allocated previously.

Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

parent 16830985

drivers/iommu/dmar.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -1070,6 +1070,12 @@ static int alloc_iommu(struct dmar_drhd_unit *drhd)
		intel_iommu_groups,
		"%s", iommu->name);

		if (IS_ERR(iommu->iommu_dev)) {
		drhd->iommu = NULL;
		err = PTR_ERR(iommu->iommu_dev);
		goto err_unmap;
		}

		return 0;

		err_unmap: