From 12b3a7c2363df17e4c735d121c896ab4a33d3538 Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Sun, 4 Oct 2020 02:24:10 +0200
Subject: [PATCH] fix: data mtrim - no crashing

---
 client/src/cmddata.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/client/src/cmddata.c b/client/src/cmddata.c
index ffa6785b4..74f6b4a23 100644
--- a/client/src/cmddata.c
+++ b/client/src/cmddata.c
@@ -1825,7 +1825,8 @@ static int CmdMtrim(const char *Cmd) {
     uint32_t start = 0, stop = 0;
     sscanf(Cmd, "%u %u", &start, &stop);
 
-    if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return PM3_ESOFT;
+    if (start > GraphTraceLen || stop > GraphTraceLen || start >= stop) 
+        return PM3_ESOFT;
 
     // leave start position sample
     start++;