From 8d33ea5881bce56f85de7fcc90e1c5618fa5b62d Mon Sep 17 00:00:00 2001 From: Hiroshi DOYU Date: Mon, 15 Feb 2010 10:03:32 -0800 Subject: [PATCH] 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 Signed-off-by: Hari Nagalla Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c index 463d6386aff2..e74811920668 100644 --- a/arch/arm/plat-omap/iommu.c +++ b/arch/arm/plat-omap/iommu.c @@ -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; } -- GitLab