From 1c730aab868c5545528175b2f62ba5e91da85e08 Mon Sep 17 00:00:00 2001
From: gemu <gmutz2010@googlemail.com>
Date: Tue, 10 Sep 2024 14:48:38 +0200
Subject: [PATCH] fix trx pin error (#22119)

---
 tasmota/tasmota_xsns_sensor/xsns_53_sml.ino | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tasmota/tasmota_xsns_sensor/xsns_53_sml.ino b/tasmota/tasmota_xsns_sensor/xsns_53_sml.ino
index b32cce123..4984733c4 100755
--- a/tasmota/tasmota_xsns_sensor/xsns_53_sml.ino
+++ b/tasmota/tasmota_xsns_sensor/xsns_53_sml.ino
@@ -3246,14 +3246,15 @@ dddef_exit:
           mmp->params = strtol(lp1, &lp1, 10);
           if (*lp1 != ',') goto next_line;
           lp1++;
-          mmp->prefix[SML_PREFIX_SIZE - 1] = 0;
           for (uint32_t cnt = 0; cnt < SML_PREFIX_SIZE; cnt++) {
-            if (*lp1 == SCRIPT_EOL || *lp1 == ',') {
+            if (!*lp1 || *lp1 == SCRIPT_EOL || *lp1 == ',') {
               mmp->prefix[cnt] = 0;
               break;
             }
-           mmp->prefix[cnt] = *lp1++;
+            mmp->prefix[cnt] = *lp1++;
           }
+          mmp->prefix[SML_PREFIX_SIZE - 1] = 0;
+
           if (*lp1 == ',') {
             lp1++;
             // get TRX pin