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fix endless loop

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This commit is contained in:
merlokk 2019-02-05 18:27:48 +02:00
parent cd44ea27b7
commit 0e5d896893
1 changed files with 1 additions and 1 deletions
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2
armsrc/iso14443a.c
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@ -2248,7 +2248,7 @@ int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, bool send_chaining, void *data, u
return 0; //DATA LINK ERROR
} else{
// S-Block WTX
while((data_bytes[0] & 0xF2) == 0xF2) {
while(len && ((data_bytes[0] & 0xF2) == 0xF2)) {
uint32_t save_iso14a_timeout = iso14a_get_timeout();
// temporarily increase timeout
iso14a_set_timeout( MAX((data_bytes[1] & 0x3f) * save_iso14a_timeout, MAX_ISO14A_TIMEOUT) );