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

arch/arm/plat-omap/iommu.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

	}