omap iommu: Exit iteration if no possibility of available area

Searching avaialable spaces should be stopped as soon as it turns out
that there's no possibility with the rest of it.

Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c
index 5afe0135b97..e43983ba59c 100644
--- a/arch/arm/plat-omap/iovmm.c
+++ b/arch/arm/plat-omap/iovmm.c
@@ -287,7 +287,10 @@ static struct iovm_struct *alloc_iovm_area(struct iommu *obj, u32 da,
         prev_end = 0;
         list_for_each_entry(tmp, &obj->mmap, list) {
 
-                if ((prev_end < start) && (start + bytes < tmp->da_start))
+                if (prev_end >= start)
+                        break;
+
+                if (start + bytes < tmp->da_start)
                         goto found;
 
                 if (flags & IOVMF_DA_ANON)