omap: iommu: fix incorrect address for supersection 1st entry

There was a potential risk that the following "memset" could override
its range if a given address was not the 1st entry of a
supersection. This is not the case for "iovmm".

Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Hari Nagalla <hnagalla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c
index 463d6386aff2..e74811920668 100644
--- a/arch/arm/plat-omap/iommu.c
+++ b/arch/arm/plat-omap/iommu.c
@@ -667,7 +667,7 @@ static size_t iopgtable_clear_entry_core(struct iommu *obj, u32 da)
                 if ((*iopgd & IOPGD_SUPER) == IOPGD_SUPER) {
                         nent *= 16;
                         /* rewind to the 1st entry */
-                        iopgd = (u32 *)((u32)iopgd & IOSUPER_MASK);
+                        iopgd = iopgd_offset(obj, (da & IOSUPER_MASK));
                 }
                 bytes *= nent;
         }