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

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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>
This commit is contained in:
Hiroshi DOYU 2010-02-15 10:03:32 -08:00 committed by Tony Lindgren
parent 97ec7d585b
commit 8d33ea5881
1 changed files with 1 additions and 1 deletions
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2
arch/arm/plat-omap/iommu.c
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@ -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;
}