From abaef4de6c7a7846e0767bee849a91f4aa59c6ac Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Sat, 17 Oct 2020 17:47:58 +0200
Subject: [PATCH] hf 15 demod - dont calc crc if we didnt get enough data

---
 client/src/cmdhf15.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/client/src/cmdhf15.c b/client/src/cmdhf15.c
index 407815a93..6b1b1a51b 100644
--- a/client/src/cmdhf15.c
+++ b/client/src/cmdhf15.c
@@ -766,7 +766,9 @@ static int CmdHF15Demod(const char *Cmd) {
     for (i = 0; i < k; i++)
         PrintAndLogEx(SUCCESS, "# %2d: %02x ", i, outBuf[i]);
 
-    PrintAndLogEx(SUCCESS, "CRC %04x", Crc15(outBuf, k - 2));
+    if (k > 2) {
+        PrintAndLogEx(SUCCESS, "CRC %04x", Crc15(outBuf, k - 2));
+    }
     return PM3_SUCCESS;
 }