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-Url: http://git.lede-project.org./?a=commitdiff_plain;h=67ab0a5e9f295662e6c1363a6cb71d4dd9d51524;p=project%2Fbcm63xx%2Fu-boot.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 6cd3fbb58a..3512b149c5 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -332,7 +332,7 @@ 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;