From: relan <relan@users.noreply.github.com>
Date: Tue, 2 May 2017 17:19:57 +0000 (+0300)
Subject: Fix clusters bitmap size.
X-Git-Tag: android-x86-9.0-r1~42
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=2f6a54823b8069e9f02b5ece1e6b77307f808283;p=android-x86%2Fexternal-exfat.git

Fix clusters bitmap size.

The last two clusters were erroneously considered invalid. Note that
clusters numbering starts with 2.
---

diff --git a/libexfat/node.c b/libexfat/node.c
index 3f58e9d..b544bd9 100644
--- a/libexfat/node.c
+++ b/libexfat/node.c
@@ -469,8 +469,7 @@ static int readdir(struct exfat* ef, struct exfat_node* parent,
 						ef->cmap.start_cluster);
 				return -EIO;
 			}
-			ef->cmap.size = le32_to_cpu(ef->sb->cluster_count) -
-				EXFAT_FIRST_DATA_CLUSTER;
+			ef->cmap.size = le32_to_cpu(ef->sb->cluster_count);
 			if (le64_to_cpu(bitmap->size) < DIV_ROUND_UP(ef->cmap.size, 8))
 			{
 				exfat_error("invalid clusters bitmap size: %"PRIu64