From: Stephen Warren <swarren@nvidia.com>
Date: Tue, 1 Jul 2014 18:16:57 +0000 (-0600)
Subject: dfu: fix readback buffer overflow test
X-Git-Tag: submit/tizen/20160318.071304~239
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b994eabda8a9d3cbf4f61a41da68128e439c20c9;p=profile%2Fcommon%2Fplatform%2Fkernel%2Fu-boot-artik.git

dfu: fix readback buffer overflow test

The buffer is too small if it's < size to read, not if it's <= the size.
This fixes the 1MB test case on Tegra, which has a 1MB buffer.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---

diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
index d1cc212a9..4368a514d 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -344,7 +344,7 @@ int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
 		case DFU_RAM_ADDR:
 			break;
 		default:
-			if (dfu->r_left >= dfu_buf_size) {
+			if (dfu->r_left > dfu_buf_size) {
 				printf("%s: File too big for buffer\n",
 				       __func__);
 				return -EOVERFLOW;