From: Charles Manning <cdhmanning@gmail.com>
Date: Tue, 20 Mar 2012 07:47:37 +0000 (+1300)
Subject: Fix summary header validation
X-Git-Tag: pre-driver-refactoring~25
X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=commitdiff_plain;h=eeb0f17a7a2280ec4f20b46ec40a4997f1b7d2e7

Fix summary header validation

Was not checking the byte count correctly.

Signed-off-by: Charles Manning <cdhmanning@gmail.com>
---

diff --git a/yaffs_summary.c b/yaffs_summary.c
index 49eaef1..20b27d8 100644
--- a/yaffs_summary.c
+++ b/yaffs_summary.c
@@ -214,7 +214,7 @@ int yaffs_summary_read(struct yaffs_dev *dev,
 			tags.obj_id != YAFFS_OBJECTID_SUMMARY ||
 			tags.chunk_used == 0 ||
 			tags.ecc_result > YAFFS_ECC_RESULT_FIXED ||
-			this_tx != tags.n_bytes)
+			tags.n_bytes != (this_tx + sizeof(hdr)))
 				result = YAFFS_FAIL;
 		if (result != YAFFS_OK)
 			break;