From a55a52e0a904da6eb35a050abd47fe61c0a7f5a1 Mon Sep 17 00:00:00 2001
From: Romain Tartiere <romain.tartiere@gmail.com>
Date: Sat, 5 Mar 2011 01:46:16 +0000
Subject: [PATCH] Fix pn53x_InAutoPoll() return value on user cancelation (true
 instead of false).

---
 libnfc/chips/pn53x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libnfc/chips/pn53x.c b/libnfc/chips/pn53x.c
index 2c10242..88096b1 100644
--- a/libnfc/chips/pn53x.c
+++ b/libnfc/chips/pn53x.c
@@ -675,9 +675,9 @@ pn53x_InAutoPoll (nfc_device_t * pnd,
   size_t  szRx = sizeof(abtRx);
   bool res = pn53x_transceive (pnd, abtCmd, szTxInAutoPoll, abtRx, &szRx);
 
-  if ((szRx == 0) || (res == false)) {
+  if (res == false) {
     return false;
-  } else {
+  } else if (szRx > 0) {
     *pszTargetFound = abtRx[0];
     if (*pszTargetFound) {
       uint8_t ln;