Hello Pavel, On Sun, Jul 12, 2020 at 10:24:53AM +0200, Pavel Machek wrote: > > +++ b/drivers/leds/trigger/ledtrig-tty.c > > @@ -0,0 +1,192 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > 2.0+ is preffered.
My employer requests GPL-2.0-only for kernel code.
> > + while (firstrun ||
> > + icount.rx != trigger_data->rx ||
> > + icount.tx != trigger_data->tx) {
> > +
> > + led_set_brightness(trigger_data->led_cdev, LED_ON);
> > +
> > + msleep(100);
> > +
> > + led_set_brightness(trigger_data->led_cdev, LED_OFF);
>
> Is this good idea inside workqueue?
What is "this"? The msleep? Calling led_set_brightness? What would you
recommend instead? Maybe led_set_brightness_nosleep()?
> > + trigger_data->rx = icount.rx;
> > + trigger_data->tx = icount.tx;
> > + firstrun = false;
> > +
> > + ret = tty_get_icount(trigger_data->tty, &icount);
> > + if (ret)
> > + return;
>
> Unbalanced locking.
indeed, will fix and resend after the above issues are resolved.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | https://www.pengutronix.de/ |
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