fix #2565 by inverting the grb2hsv argcheck condition (#3076)

nodemcu · Apr 26, 2020 · e627249 · e627249
1 parent 3c3bec9
commit e627249
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/app/modules/color_utils.c b/app/modules/color_utils.c
@@ -217,7 +217,7 @@ static int cu_grb2hsv(lua_State *L) {
   const int r = luaL_checkint(L, 2);
   const int b = luaL_checkint(L, 3);
 
-  luaL_argcheck(L, g == r && g == b, 1, "greyscale value cannot be converted to hsv");
+  luaL_argcheck(L, g != r || g != b, 1, "greyscale value cannot be converted to hsv");
 
   uint32_t hsv = grb2hsv(g, r, b);