serial: cast before shifting on port io (7a876b39) · Commits · 戴 / test

Without this we will shift data into oblivion and give wrong results on some configurations Signed-off-by:

drivers/tty/serial/serial_core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2366,7 +2366,7 @@ static ssize_t uart_get_attr_port(struct device *dev,
		struct tty_port *port = dev_get_drvdata(dev);

		uart_get_info(port, &tmp);
		return snprintf(buf, PAGE_SIZE, "0x%lX\n", (unsigned long)(tmp.port \| (tmp.port_high << HIGH_BITS_OFFSET)));
		return snprintf(buf, PAGE_SIZE, "0x%lX\n", (unsigned long)(tmp.port \| (((unsigned long)tmp.port_high) << HIGH_BITS_OFFSET)));
		}

		static ssize_t uart_get_attr_irq(struct device *dev,