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uart: do not use uninitialized uart pins config

This commit is contained in:
Joo Aun Saw 2022-08-29 16:45:36 +10:00 committed by Johny Mattsson
parent ca0a2b3f47
commit ddc770a6f7
1 changed files with 5 additions and 1 deletions
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6
components/modules/uart.c
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@ -135,7 +135,9 @@ static int uart_setup( lua_State* L )
unsigned id, databits, parity, stopbits, echo = 1; unsigned id, databits, parity, stopbits, echo = 1;
uint32_t baud, res; uint32_t baud, res;
uart_pins_t pins; uart_pins_t pins;
uart_pins_t* pins_to_use = NULL;
memset(&pins, 0, sizeof(pins));
id = luaL_checkinteger( L, 1 ); id = luaL_checkinteger( L, 1 );
MOD_CHECK_ID( uart, id ); MOD_CHECK_ID( uart, id );
baud = luaL_checkinteger( L, 2 ); baud = luaL_checkinteger( L, 2 );
@ -169,9 +171,11 @@ static int uart_setup( lua_State* L )
lua_getfield (L, 6, "flow_control"); lua_getfield (L, 6, "flow_control");
pins.flow_control = luaL_optint(L, -1, PLATFORM_UART_FLOW_NONE); pins.flow_control = luaL_optint(L, -1, PLATFORM_UART_FLOW_NONE);
pins_to_use = &pins;
} }
res = platform_uart_setup( id, baud, databits, parity, stopbits, &pins ); res = platform_uart_setup( id, baud, databits, parity, stopbits, pins_to_use );
lua_pushinteger( L, res ); lua_pushinteger( L, res );
return 1; return 1;
} }