On Wed, Oct 03, 2012 at 11:26:46AM +0530, Poddar, Sourav wrote: > Hi Dmitry, > > On Tue, Oct 2, 2012 at 11:48 AM, Dmitry Torokhov > <dmitry.torokhov@xxxxxxxxx> wrote: > > Hi Sourav, > > > > On Mon, Oct 01, 2012 at 04:31:50PM +0530, Sourav Poddar wrote: > >> From: G, Manjunath Kondaiah <manjugk@xxxxxx> > >> > >> + > >> + /* Enable smsc keypad interrupts */ > >> + ret = smsc_write(dev, SMSC_KP_INT_MASK, 0xff); > >> + if (ret < 0) > >> + goto err2; > >> + > >> + return 0; > >> + > >> +err2: > >> + input_unregister_device(input); > >> +err1: > >> + input_free_device(input); > > > > Double free. > > > I believe what you are trying to say here is that we dont really > need a " input_unregister_device" (as also I checked in other keypad > implementations) and do a "unregister_device" in the remove api ?? What I was trying to say is that if input device has been registered then you need to call input_unregister_device() to unregister and free it, otherwise you need to call input_free_device(), but not both. Thanks. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html