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USB: serial: ir-usb: Silence harmless uninitialized variable warning 

The "actual_length" variable might be uninitialized on some failure
paths.  It's harmless but static analysis tools like Smatch complain
and at runtime the UBSan tool will likely complain as well.

Fixes: e7542bc382 ("USB: serial: ir-usb: make set_termios synchronous")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Dan Carpenter 2020-01-29 20:30:37 +03:00 committed by Johan Hovold
parent bb6d3fb354
commit c664a4fa8f
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/serial/ir-usb.c
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@ -448,7 +448,7 @@ static void ir_set_termios(struct tty_struct *tty,
usb_sndbulkpipe(udev, port->bulk_out_endpointAddress),
transfer_buffer, 1, &actual_length, 5000);
if (ret || actual_length != 1) {
if (actual_length != 1)
if (!ret)
ret = -EIO;
dev_err(&port->dev, "failed to change line speed: %d\n", ret);
}