From: relan <relan@users.noreply.github.com>
Date: Sat, 19 Dec 2015 08:16:21 +0000 (+0300)
Subject: Fix clusters loss when file renaming replaces target.
X-Git-Tag: android-x86-9.0-r1~94
X-Git-Url: http://git.osdn.net/view?p=android-x86%2Fexternal-exfat.git;a=commitdiff_plain;h=1bacc536bb3ef013bc502937ee0d89ed32b253d7

Fix clusters loss when file renaming replaces target.

Add missing exfat_cleanup_node() call after exfat_unlink().
---

diff --git a/libexfat/node.c b/libexfat/node.c
index d05f20d..4dd4dc6 100644
--- a/libexfat/node.c
+++ b/libexfat/node.c
@@ -1130,6 +1130,16 @@ int exfat_rename(struct exfat* ef, const char* old_path, const char* new_path)
 			exfat_put_node(ef, existing);
 			if (rc != 0)
 			{
+				/* free clusters even if something went wrong; overwise they
+				   will be just lost */
+				exfat_cleanup_node(ef, existing);
+				exfat_put_node(ef, dir);
+				exfat_put_node(ef, node);
+				return rc;
+			}
+			rc = exfat_cleanup_node(ef, existing);
+			if (rc != 0)
+			{
 				exfat_put_node(ef, dir);
 				exfat_put_node(ef, node);
 				return rc;