added win32 support for MINGW32-compiler/cross-compiler

[librfid] / src / rfid_reader.c

diff --git a/src/rfid_reader.c b/src/rfid_reader.c
index a5dbeb2..a8e4001 100644 (file)
--- a/src/rfid_reader.c
+++ b/src/rfid_reader.c
@@ -26,7 +26,7 @@
 #include <librfid/rfid_reader_openpcd.h>
 
 static const struct rfid_reader *rfid_readers[] = {
-#ifndef LIBRFID_FIRMWARE
+#ifdef ENABLE_CM5121
        [RFID_READER_CM5121]    = &rfid_reader_cm5121,
 #endif
        [RFID_READER_OPENPCD]   = &rfid_reader_openpcd,
@@ -43,6 +43,8 @@ rfid_reader_open(void *data, unsigned int id)
        }
 
        p = rfid_readers[id];
+       if (!p)
+               return NULL;
 
        return p->open(data);
 }