its okay to close the fd even if it isnt properly opened

src/lcd.c

@@ -31,6 +31,7 @@ void lcd_close(struct lcd_t *lcd) {
 void lcd_write(struct lcd_t *lcd, const uint8_t *cmdbuf, const uint8_t len) {
 	if (write(lcd->fd, cmdbuf, len) <= 0) {
 		applog(LOG_ERR, "failed to execute write(), lost access to port?");
+		lcd_close(lcd);
 		lcd_open(lcd, true);
 	}
 }