diff options
| -rw-r--r-- | drivers/iommu/iommu.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 3b1a2551a747..89dc50b9acdc 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -788,15 +788,16 @@ static struct iommu_group *iommu_group_get_for_pci_dev(struct pci_dev *pdev) /* No shared group found, allocate new */ group = iommu_group_alloc(); - if (group) { - /* - * Try to allocate a default domain - needs support from the - * IOMMU driver. - */ - group->default_domain = __iommu_domain_alloc(pdev->dev.bus, - IOMMU_DOMAIN_DMA); - group->domain = group->default_domain; - } + if (IS_ERR(group)) + return NULL; + + /* + * Try to allocate a default domain - needs support from the + * IOMMU driver. + */ + group->default_domain = __iommu_domain_alloc(pdev->dev.bus, + IOMMU_DOMAIN_DMA); + group->domain = group->default_domain; return group; } @@ -1548,8 +1549,8 @@ int iommu_request_dm_for_dev(struct device *dev) /* Device must already be in a group before calling this function */ group = iommu_group_get_for_dev(dev); - if (!group) - return -EINVAL; + if (IS_ERR(group)) + return PTR_ERR(group); mutex_lock(&group->mutex); |