diff options
Diffstat (limited to 'drivers/iommu/omap-iommu.c')
| -rw-r--r-- | drivers/iommu/omap-iommu.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index e202b0c24120..b888b7a6dd4f 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -1091,6 +1091,11 @@ omap_iommu_attach_dev(struct iommu_domain *domain, struct device *dev) struct omap_iommu_arch_data *arch_data = dev->archdata.iommu; int ret = 0; + if (!arch_data || !arch_data->name) { + dev_err(dev, "device doesn't have an associated iommu\n"); + return -EINVAL; + } + spin_lock(&omap_domain->lock); /* only a single device is supported per domain for now */ |