From 82775c4803da22b87c7b107c5b9caa7bd77fbf82 Mon Sep 17 00:00:00 2001
From: Jonas 'Sortie' Termansen <sortie@maxsi.org>
Date: Thu, 8 Oct 2015 15:55:30 +0200
Subject: [PATCH] Fix extfs invalid block free on truncation.

---
 ext/inode.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ext/inode.cpp b/ext/inode.cpp
index f3cd6166..8d0a39ab 100644
--- a/ext/inode.cpp
+++ b/ext/inode.cpp
@@ -372,6 +372,8 @@ void Inode::Truncate(uint64_t new_size)
 
 	for ( uint64_t i = new_num_blocks; i < old_num_blocks && i < 12; i++ )
 	{
+		if ( !data->i_block[i] )
+			continue;
 		filesystem->FreeBlock(data->i_block[i]);
 		data->i_block[i] = 0;
 	}