fix for when removing a torrent when it is in the checking state

src/session_impl.cpp

@@ -1891,7 +1891,7 @@ namespace aux {
 #ifndef NDEBUG
 			sha1_hash i_hash = t.torrent_file().info_hash();
 #endif
-			i->second->set_queue_position(-1);
+			t.set_queue_position(-1);
 			m_torrents.erase(i);
 			std::list<boost::shared_ptr<torrent> >::iterator k
 				= std::find(m_queued_for_checking.begin(), m_queued_for_checking.end(), tptr);

src/torrent.cpp

@@ -784,7 +784,7 @@ namespace libtorrent
 		// we're done, or encounter a failure
 		if (ret == piece_manager::need_full_check) return;
 
-		m_ses.done_checking(shared_from_this());
+		if (!m_abort) m_ses.done_checking(shared_from_this());
 		files_checked();
 	}
 
@@ -1624,7 +1624,10 @@ namespace libtorrent
 		if (m_owning_storage.get())
 			m_storage->async_release_files(
 				bind(&torrent::on_files_released, shared_from_this(), _1, _2));
-			
+		
+		if (m_state == torrent_status::checking_files)
+			m_ses.done_checking(shared_from_this());
+		
 		m_owning_storage = 0;
 		m_host_resolver.cancel();
 	}