On Wed, 14 Aug 2019 15:20:14 +0200 Jonas Gorski <jonas.gorski@xxxxxxxxx> wrote: > > + d = devm_kzalloc(&pdev->dev, sizeof(*d), GFP_KERNEL); > > &pdev->dev => dev will change. > > > + if (!d) > > + return -ENOMEM; > > + > > + sk = kzalloc(sizeof(*sk), GFP_KERNEL); > > any reason not to devm_kzalloc this as well? Then you won't need to > manually free it in the error cases. it has different life time than the device, so it may not allocated via devm_kzalloc > > +static int ioc3kbd_remove(struct platform_device *pdev) > > +{ > > + struct ioc3kbd_data *d = platform_get_drvdata(pdev); > > + > > + devm_free_irq(&pdev->dev, d->irq, d); > > + serio_unregister_port(d->kbd); > > + serio_unregister_port(d->aux); > > + return 0; > > +} > > and on that topic, won't you need to kfree d->kbd and d->aux here? that's done in serio_release_port() by the serio core. Thomas. -- SUSE Linux GmbH GF: Felix Imendörffer, Mary Higgins, Sri Rasiah HRB 21284 (AG Nürnberg)