FIX: 'data print' - now don't crash the client when demodbuffer is empty

[proxmark3-svn] / armsrc / mifareutil.c

diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c
index 3d6dce41d5e0884722145ba2aacd8a69567f9271..a9e487819db4ebcae94f08d0a3820e56912eb096 100644 (file)
--- a/armsrc/mifareutil.c
+++ b/armsrc/mifareutil.c
@@ -470,11 +470,10 @@ int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData) {
     return 0;\r
 }\r
 int mifare_classic_halt_ex(struct Crypto1State *pcs) {\r
-       uint16_t len = 0;       \r
        uint8_t receivedAnswer[4] = {0x00, 0x00, 0x00, 0x00};\r
-       len = mifare_sendcmd_short(pcs, (pcs == NULL) ? CRYPT_NONE : CRYPT_ALL, 0x50, 0x00, receivedAnswer, NULL, NULL);\r
+       uint16_t len = mifare_sendcmd_short(pcs, (pcs == NULL) ? CRYPT_NONE : CRYPT_ALL, 0x50, 0x00, receivedAnswer, NULL, NULL);\r
        if (len != 0) {\r
-               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("halt error. response len: %x", len);  \r
+               if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("halt warning. response len: %x", len);\r
                return 1;\r
        }\r
        return 0;\r