diff options
| author | Joerg Roedel <jroedel@suse.de> | 2016-01-07 12:16:51 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2016-01-07 13:44:41 +0100 |
| commit | bc8474549e94efddb5d5791af0a015d13115b67b (patch) | |
| tree | 082c049f62308c4eeb99d282fd507613f35be96c /drivers | |
| parent | 592033790e8276f7038efb480871598648464a01 (diff) | |
| download | linux-bc8474549e94efddb5d5791af0a015d13115b67b.tar.bz2 | |
iommu/vt-d: Fix up error handling in alloc_iommu
Only check for error when iommu->iommu_dev has been assigned
and only assign drhd->iommu when the function can't fail
anymore.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/dmar.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index add177a37f00..62a400c5ba06 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1063,19 +1063,19 @@ static int alloc_iommu(struct dmar_drhd_unit *drhd) raw_spin_lock_init(&iommu->register_lock); - drhd->iommu = iommu; - - if (intel_iommu_enabled) + if (intel_iommu_enabled) { iommu->iommu_dev = iommu_device_create(NULL, iommu, intel_iommu_groups, "%s", iommu->name); - if (IS_ERR(iommu->iommu_dev)) { - drhd->iommu = NULL; - err = PTR_ERR(iommu->iommu_dev); - goto err_unmap; + if (IS_ERR(iommu->iommu_dev)) { + err = PTR_ERR(iommu->iommu_dev); + goto err_unmap; + } } + drhd->iommu = iommu; + return 0; err_unmap: |