omap3isp cache error when unloading

Commit Message

Michael Jones March 3, 2011, 4:06 p.m. UTC

None

Patch

diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c
index 6dc1296..2fba6f1 100644
--- a/arch/arm/plat-omap/iovmm.c
+++ b/arch/arm/plat-omap/iovmm.c
@@ -280,7 +280,10 @@  static struct iovm_struct *alloc_iovm_area(struct iommu *obj, u32 da,
 	alignement = PAGE_SIZE;
 
 	if (flags & IOVMF_DA_ANON) {
-		start = obj->da_start;
+		/*
+		 * Reserve the first page for NULL
+		 */
+		start = obj->da_start + PAGE_SIZE;
 
 		if (flags & IOVMF_LINEAR)
 			alignement = iopgsz_max(bytes);