From: Jeremiah Mahler <[email protected]> This patch has been added to the 3.18 stable tree. If you have any objections, please let us know.
=============== [ Upstream commit aa8e22128b40590b291cd13512098bf258a7e6c5 ] If a USB serial device is unplugged while there is an active program using the device it may spam the logs with -EPROTO (71) messages as it attempts to retry. Most serial usb drivers (metro-usb, pl2303, mos7840, ...) only output these messages for debugging. The generic driver treats these as errors. Change the default output for the generic serial driver from error to debug to silence these non-critical errors. 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 904ab35..c44b9119 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -374,7 +374,7 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb) __func__, urb->status); return; default: - dev_err(&port->dev, "%s - nonzero urb status: %d\n", + dev_dbg(&port->dev, "%s - nonzero urb status: %d\n", __func__, urb->status); goto resubmit; } -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
