diff mbox

[2/4] iovmm: fix roundup for next area and end check for the last area

Message ID 1285902536-7043-3-git-send-email-x0095840@ti.com (mailing list archive)
State New, archived
Delegated to: Hiroshi DOYU
Headers show

Commit Message

Guzman Lugo, Fernando Oct. 1, 2010, 3:08 a.m. UTC 
None
diff mbox

Patch

diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c
index 24ca9c4..fc6b109 100644
--- a/arch/arm/plat-omap/iovmm.c
+++ b/arch/arm/plat-omap/iovmm.c
@@ -289,19 +289,19 @@  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)
+		if (prev_end > start)
 			break;
 
 		if (start + bytes <= tmp->da_start)
 			goto found;
 
 		if (flags & IOVMF_DA_ANON)
-			start = roundup(tmp->da_end + 1, alignement);
+			start = roundup(tmp->da_end, alignement);
 
 		prev_end = tmp->da_end;
 	}
 
-	if ((start > prev_end) && (ULONG_MAX - start >= bytes))
+	if ((start >= prev_end) && (ULONG_MAX - start + 1 >= bytes))
 		goto found;
 
 	dev_dbg(obj->dev, "%s: no space to fit %08x(%x) flags: %08x\n",