1 files changed, 9 insertions, 6 deletions

diff --git a/arch/arm/mach-msm/iommu.c b/arch/arm/mach-msm/iommu.c
index 134add789187..74f2157eba4e 100644
--- a/arch/arm/mach-msm/iommu.c
+++ b/arch/arm/mach-msm/iommu.c
@@ -50,13 +50,16 @@ static void __flush_iotlb(struct iommu_domain *domain)
         unsigned long *fl_table = priv->pgtable;
         int i;
 
-        dmac_flush_range(fl_table, fl_table + SZ_16K);
+        if (!list_empty(&priv->list_attached)) {
+                dmac_flush_range(fl_table, fl_table + SZ_16K);
 
-        for (i = 0; i < NUM_FL_PTE; i++)
-                if ((fl_table[i] & 0x03) == FL_TYPE_TABLE) {
-                        void *sl_table = __va(fl_table[i] & FL_BASE_MASK);
-                        dmac_flush_range(sl_table, sl_table + SZ_4K);
-                }
+                for (i = 0; i < NUM_FL_PTE; i++)
+                        if ((fl_table[i] & 0x03) == FL_TYPE_TABLE) {
+                                void *sl_table = __va(fl_table[i] &
+                                                                FL_BASE_MASK);
+                                dmac_flush_range(sl_table, sl_table + SZ_4K);
+                        }
+        }
 #endif
 
         list_for_each_entry(ctx_drvdata, &priv->list_attached, attached_elm) {