Commit 8d33ea58 authored by Hiroshi DOYU's avatar Hiroshi DOYU Committed by Tony Lindgren
Browse files

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: default avatarHiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: default avatarHari Nagalla <hnagalla@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 97ec7d58
......@@ -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;
}
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment