Return-path: Received: from mail-ie0-f169.google.com ([209.85.223.169]:46993 "EHLO mail-ie0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752703AbaE3LjQ (ORCPT ); Fri, 30 May 2014 07:39:16 -0400 MIME-Version: 1.0 In-Reply-To: <1401449454-30895-2-git-send-email-berthe.ab@gmail.com> References: <20140530094025.3b78301e@canb.auug.org.au> <1401449454-30895-1-git-send-email-berthe.ab@gmail.com> <1401449454-30895-2-git-send-email-berthe.ab@gmail.com> Date: Fri, 30 May 2014 13:39:15 +0200 Message-ID: (sfid-20140530_133928_304243_0D7DEC88) Subject: Re: [PATCH 2/2] gpio: gpiolib: set gpiochip_remove retval to void From: Geert Uytterhoeven To: abdoulaye berthe Cc: Linus Walleij , Alexandre Courbot , m@bues.ch, "linux-gpio@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Linux MIPS Mailing List , "linuxppc-dev@lists.ozlabs.org" , Linux-sh list , linux-wireless , patches@opensource.wolfsonmicro.com, "linux-input@vger.kernel.org" , "linux-leds@vger.kernel.org" , Linux Media Mailing List , linux-samsungsoc@vger.kernel.org, spear-devel@list.st.com, platform-driver-x86@vger.kernel.org, "netdev@vger.kernel.org" , driverdevel Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Fri, May 30, 2014 at 1:30 PM, abdoulaye berthe wrote: > --- a/drivers/gpio/gpiolib.c > +++ b/drivers/gpio/gpiolib.c > @@ -1263,10 +1263,9 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip); > * > * A gpio_chip with any GPIOs still requested may not be removed. > */ > -int gpiochip_remove(struct gpio_chip *chip) > +void gpiochip_remove(struct gpio_chip *chip) > { > unsigned long flags; > - int status = 0; > unsigned id; > > acpi_gpiochip_remove(chip); > @@ -1278,24 +1277,15 @@ int gpiochip_remove(struct gpio_chip *chip) > of_gpiochip_remove(chip); > > for (id = 0; id < chip->ngpio; id++) { > - if (test_bit(FLAG_REQUESTED, &chip->desc[id].flags)) { > - status = -EBUSY; > - break; > - } > - } > - if (status == 0) { > - for (id = 0; id < chip->ngpio; id++) > - chip->desc[id].chip = NULL; > - > - list_del(&chip->list); > + if (test_bit(FLAG_REQUESTED, &chip->desc[id].flags)) > + panic("gpio: removing gpiochip with gpios still requested\n"); panic? Is this likely to happen? Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds