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| author | Nicholas Krause <xerofoify@gmail.com> | 2016-01-05 00:27:57 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2016-01-07 13:43:56 +0100 |
| commit | 592033790e8276f7038efb480871598648464a01 (patch) | |
| tree | 375165f1ab8b06e8071952edcab9f23b303a9300 /drivers/iommu/dmar.c | |
| parent | Linux 4.4-rc8 (diff) | |
| download | linux-592033790e8276f7038efb480871598648464a01.tar.xz linux-592033790e8276f7038efb480871598648464a01.zip | |
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>
Diffstat (limited to 'drivers/iommu/dmar.c')
| -rw-r--r-- | drivers/iommu/dmar.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index 80e3c176008e..add177a37f00 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -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: |