Fix comparison when nfc_initiator_target_is_present() with a specified target

Author: neomilium

libnfc/chips/pn53x.c

@@ -1059,6 +1059,7 @@ pn53x_initiator_select_passive_target_ext(struct nfc_device *pnd,
   size_t  szTargetsData = sizeof(abtTargetsData);
   int res = 0;
   nfc_target nttmp;
+  memset(&nttmp, 0x00, sizeof(nfc_target));
 
   if (nm.nmt == NMT_ISO14443BI || nm.nmt == NMT_ISO14443B2SR || nm.nmt == NMT_ISO14443B2CT) {
     if (CHIP_DATA(pnd)->type == RCS360) {
@@ -1148,7 +1149,6 @@ pn53x_initiator_select_passive_target_ext(struct nfc_device *pnd,
     if (! found)
       return 0;
   } else {
-
     const pn53x_modulation pm = pn53x_nm_to_pm(nm);
     if ((PM_UNDEFINED == pm) || (NBR_UNDEFINED == nm.nbr)) {
       pnd->last_error = NFC_EINVARG;
@@ -1221,6 +1221,8 @@ pn53x_initiator_poll_target(struct nfc_device *pnd,
       szTargetTypes++;
     }
     nfc_target ntTargets[2];
+    memset(ntTargets, 0x00, sizeof(nfc_target) * 2);
+
     if ((res = pn53x_InAutoPoll(pnd, apttTargetTypes, szTargetTypes, uiPollNr, uiPeriod, ntTargets, 0)) < 0)
       return res;
     switch (res) {