--- zzzz-none-000/linux-2.6.19.2/arch/powerpc/platforms/cell/spufs/file.c	2007-01-10 19:10:37.000000000 +0000
+++ davinci-8020-5504/linux-2.6.19.2/arch/powerpc/platforms/cell/spufs/file.c	2007-01-11 07:38:19.000000000 +0000
@@ -385,7 +385,7 @@
 	udata = (void __user *)buf;
 
 	spu_acquire(ctx);
-	for (count = 0; (count + 4) <= len; count += 4, udata++) {
+	for (count = 0; count <= len; count += 4, udata++) {
 		int ret;
 		ret = ctx->ops->mbox_read(ctx, &mbox_data);
 		if (ret == 0)