diff -up pcsc-lite-1.6.1/src/readerfactory.c.orig pcsc-lite-1.6.1/src/readerfactory.c
--- pcsc-lite-1.6.1/src/readerfactory.c.orig	2010-07-04 23:42:14.000000000 +0300
+++ pcsc-lite-1.6.1/src/readerfactory.c	2010-07-04 23:42:23.000000000 +0300
@@ -1312,7 +1312,7 @@ void RFCleanupReaders(void)
 #ifdef USE_SERIAL
 int RFStartSerialReaders(const char *readerconf)
 {
-	SerialReader *reader_list;
+	SerialReader *reader_list = NULL;
 	int i, rv;
 
 	/* remember the configuration filename for RFReCheckReaderConf() */