From 53f55f8e1dc8fafd8a18fd026f4d147a125f5817 Mon Sep 17 00:00:00 2001
From: Bertrand Songis <bsongis@gmail.com>
Date: Wed, 15 Feb 2017 21:25:08 +0100
Subject: [PATCH] Fixes #4399: problem getting/setting curve on output with Lua
 (#4455)

---
 radio/src/lua/api_model.cpp | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/radio/src/lua/api_model.cpp b/radio/src/lua/api_model.cpp
index 482d669cf..11f32fbf1 100644
--- a/radio/src/lua/api_model.cpp
+++ b/radio/src/lua/api_model.cpp
@@ -984,8 +984,6 @@ static int luaModelGetOutput(lua_State *L)
     lua_pushtableinteger(L, "revert", limit->revert);
     if (limit->curve)
       lua_pushtableinteger(L, "curve", limit->curve-1);
-    else
-      lua_pushtablenil(L, "curve");
   }
   else {
     lua_pushnil(L);
@@ -1012,6 +1010,7 @@ static int luaModelSetOutput(lua_State *L)
   unsigned int idx = luaL_checkunsigned(L, 1);
   if (idx < MAX_OUTPUT_CHANNELS) {
     LimitData * limit = limitAddress(idx);
+    memclear(limit, sizeof(LimitData));
     luaL_checktype(L, -1, LUA_TTABLE);
     for (lua_pushnil(L); lua_next(L, -2); lua_pop(L, 1)) {
       luaL_checktype(L, -2, LUA_TSTRING); // key is string
@@ -1039,10 +1038,7 @@ static int luaModelSetOutput(lua_State *L)
         limit->revert = luaL_checkinteger(L, -1);
       }
       else if (!strcmp(key, "curve")) {
-        if (lua_isnil(L, -1))
-          limit->curve = 0;
-        else
-          limit->curve = luaL_checkinteger(L, -1) + 1;
+        limit->curve = luaL_checkinteger(L, -1) + 1;
       }
     }
     storageDirty(EE_MODEL);