From: Jeremiah Mahler <[email protected]> [ Upstream commit 04f9c6e6d17584340fb6c8a9469a0e6df28876d2 ]
If a USB serial device (e.g. /dev/ttyUSB0) with an active program is unplugged, an -ENODEV (19) error will be produced after it gives up trying to resubmit a read. usb_serial_generic_submit_read_urb - usb_submit_urb failed: -19 Add -ENODEV as one of the permanent errors along with -EPERM that usb_serial_generic_submit_read_urb() handles quietly without an error. Signed-off-by: Jeremiah Mahler <[email protected]> Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Sasha Levin <[email protected]> --- drivers/usb/serial/generic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index c44b911937e8..54e170dd3dad 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -287,7 +287,7 @@ static int usb_serial_generic_submit_read_urb(struct usb_serial_port *port, res = usb_submit_urb(port->read_urbs[index], mem_flags); if (res) { - if (res != -EPERM) { + if (res != -EPERM && res != -ENODEV) { dev_err(&port->dev, "%s - usb_submit_urb failed: %d\n", __func__, res); -- 2.17.1
