CHG: FpgaSetupDMA can fail and returns NULL. Added a check for it.

[proxmark3-svn] / armsrc / epa.c

diff --git a/armsrc/epa.c b/armsrc/epa.c
index 3b4e341aa5d949f08b12b467e6ff2daee0bfed52..16d9001455dd7f58819c40aabb2a58611e61c140 100644 (file)
--- a/armsrc/epa.c
+++ b/armsrc/epa.c
@@ -523,30 +523,31 @@ int EPA_Setup()
        uint8_t uid[10];
        uint8_t pps_response[3];
        uint8_t pps_response_par[1];
-       iso14a_card_select_t card_select_info;
+       iso14a_card_select_t card_a_info;
+       iso14b_card_select_t card_b_info;
 
        // first, look for type A cards
        // power up the field
        iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD);
        // select the card
-       return_code = iso14443a_select_card(uid, &card_select_info, NULL, true, 0);
+       return_code = iso14443a_select_card(uid, &card_a_info, NULL, true, 0);
        if (return_code == 1) {
-       // send the PPS request
-       ReaderTransmit((uint8_t *)pps, sizeof(pps), NULL);
-       return_code = ReaderReceive(pps_response, pps_response_par);
-       if (return_code != 3 || pps_response[0] != 0xD0) {
-               return return_code == 0 ? 2 : return_code;
-       }
+               // send the PPS request
+               ReaderTransmit((uint8_t *)pps, sizeof(pps), NULL);
+               return_code = ReaderReceive(pps_response, pps_response_par);
+               if (return_code != 3 || pps_response[0] != 0xD0) {
+                       return return_code == 0 ? 2 : return_code;
+               }
                Dbprintf("ISO 14443 Type A");
                iso_type = 'a';
-       return 0;
+               return 0;
        }
 
        // if we're here, there is no type A card, so we look for type B
        // power up the field
        iso14443b_setup();
        // select the card
-       return_code = iso14443b_select_card();
+       return_code = iso14443b_select_card( &card_b_info );
        if (return_code == 1) {
                Dbprintf("ISO 14443 Type B");
                iso_type = 'b';