[PATCH] iommu: fix end address of vm area comparation in alloc_iovm_area

[Fernando Guzman Lugo <x0095840@ti.com>]

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