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-rw-r--r--drivers/iommu/omap-iommu.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index c05d48f88596..f6cf728ee32a 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -628,10 +628,12 @@ iopgtable_store_entry_core(struct omap_iommu *obj, struct iotlb_entry *e)
break;
default:
fn = NULL;
- BUG();
break;
}
+ if (WARN_ON(!fn))
+ return -EINVAL;
+
prot = get_iopte_attr(e);
spin_lock(&obj->page_table_lock);