diff options
Diffstat (limited to 'sys/dev/iommu/busdma_iommu.c')
| -rw-r--r-- | sys/dev/iommu/busdma_iommu.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/dev/iommu/busdma_iommu.c b/sys/dev/iommu/busdma_iommu.c index 668ccf056463..82f73d469585 100644 --- a/sys/dev/iommu/busdma_iommu.c +++ b/sys/dev/iommu/busdma_iommu.c @@ -295,7 +295,6 @@ iommu_instantiate_ctx(struct iommu_unit *unit, device_t dev, bool rmrr) } else { iommu_free_ctx_locked(unit, ctx); } - ctx = NULL; } return (ctx); } @@ -303,6 +302,7 @@ iommu_instantiate_ctx(struct iommu_unit *unit, device_t dev, bool rmrr) struct iommu_ctx * iommu_get_dev_ctx(device_t dev) { + struct iommu_ctx *ctx; struct iommu_unit *unit; unit = iommu_find(dev, bootverbose); @@ -313,7 +313,10 @@ iommu_get_dev_ctx(device_t dev) return (NULL); iommu_unit_pre_instantiate_ctx(unit); - return (iommu_instantiate_ctx(unit, dev, false)); + ctx = iommu_instantiate_ctx(unit, dev, false); + if (ctx != NULL && (ctx->flags & IOMMU_CTX_DISABLED) != 0) + ctx = NULL; + return (ctx); } bus_dma_tag_t |