Messages in this thread Patch in this message | | | From | Fernando Guzman Lugo <> | Subject | [PATCH] iommu: fix end address of vm area comparation in alloc_iovm_area | Date | Tue, 17 Aug 2010 11:56:01 -0500 |
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End address of the vm area is .start + bytes -1., not start + byte. This patch fixes that issue by doing an inclusive comparison with tmp->da_start. This issue was preventing allocate an area of size exactly the same than the free area. I did no change the value of da_end of each vm area because it is used to get area size in several places.
Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com> Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> --- arch/arm/plat-omap/iovmm.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c index 8ce0de2..24ca9c4 100644 --- a/arch/arm/plat-omap/iovmm.c +++ b/arch/arm/plat-omap/iovmm.c @@ -292,7 +292,7 @@ static struct iovm_struct *alloc_iovm_area(struct iommu *obj, u32 da, if (prev_end >= start) break; - if (start + bytes < tmp->da_start) + if (start + bytes <= tmp->da_start) goto found; if (flags & IOVMF_DA_ANON) -- 1.6.3.3
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