From 0f299c722404f367733da07125b6e4b6c722432b Mon Sep 17 00:00:00 2001
From: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Date: Fri, 8 Jan 2010 18:54:25 +0200
Subject: [PATCH 3/3] omap iommu: fix incorrect address for supersection 1st entry
From: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
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>
---
arch/arm/plat-omap/iommu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
@@ -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;
}
--
1.6.0.4