1 files changed, 2 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 00b9436f7652..fa3469ddaef8 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1059,7 +1059,7 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
         if (!dma_window)
                 return NULL;
 
-        tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
+        tbl = kzalloc(sizeof(*tbl), GFP_KERNEL);
         if (tbl == NULL)
                 return NULL;
 
@@ -1072,6 +1072,7 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
         tbl->it_offset = offset >> IOMMU_PAGE_SHIFT;
         tbl->it_busno = 0;
         tbl->it_type = TCE_VB;
+        tbl->it_blocksize = 16;
 
         return iommu_init_table(tbl, -1);
 }