1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index f59f857b702e..a4ba851825c2 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1376,6 +1376,13 @@ static int __init omap_iommu_init(void)
         struct kmem_cache *p;
         const unsigned long flags = SLAB_HWCACHE_ALIGN;
         size_t align = 1 << 10; /* L2 pagetable alignement */
+        struct device_node *np;
+
+        np = of_find_matching_node(NULL, omap_iommu_of_match);
+        if (!np)
+                return 0;
+
+        of_node_put(np);
 
         p = kmem_cache_create("iopte_cache", IOPTE_TABLE_SIZE, align, flags,
                               iopte_cachep_ctor);