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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>
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@ -667,7 +667,7 @@ static size_t iopgtable_clear_entry_core(struct iommu *obj, u32 da)
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if ((*iopgd & IOPGD_SUPER) == IOPGD_SUPER) {
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nent *= 16;
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/* rewind to the 1st entry */
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iopgd = (u32 *)((u32)iopgd & IOSUPER_MASK);
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iopgd = iopgd_offset(obj, (da & IOSUPER_MASK));
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}
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bytes *= nent;
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}
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