On Mon, Jan 16, 2012 at 10:37:24AM -0800, Stephen Hemminger wrote:
> When using USB serial console, there is an infinite loop on shutdown.
> The console fills with the error message:
> ttyUSB0 - error submitting urb: -22
>
> It seems that writing the error message is causing the error, which
> cause the message, which causes the error, ...
> The following is needed to avoid the infinite loop.
Ick.
> Signed-off-by: Stephen Hemminger <shemminger@xxxxxxxxxx>
>
> --- a/drivers/usb/serial/generic.c 2012-01-10 10:56:58.667176726 -0800
> +++ b/drivers/usb/serial/generic.c 2012-01-16 09:37:26.754919670 -0800
> @@ -217,8 +217,6 @@ retry:
> clear_bit(i, &port->write_urbs_free);
> result = usb_submit_urb(urb, GFP_ATOMIC);
> if (result) {
> - dev_err(&port->dev, "%s - error submitting urb: %d\n",
> - __func__, result);
How about we switch this to dev_dbg()? "Normal" users will never see
this then. Will that work for you?
thanks,
greg k-h
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