From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB413C7618F for ; Tue, 16 Jul 2019 21:52:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8D24B217D9 for ; Tue, 16 Jul 2019 21:52:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="TVDnEikn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728681AbfGPVwd (ORCPT ); Tue, 16 Jul 2019 17:52:33 -0400 Received: from mail-lf1-f65.google.com ([209.85.167.65]:35782 "EHLO mail-lf1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728587AbfGPVwd (ORCPT ); Tue, 16 Jul 2019 17:52:33 -0400 Received: by mail-lf1-f65.google.com with SMTP id p197so14832000lfa.2 for ; Tue, 16 Jul 2019 14:52:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=sChX2tjZXXzFm/FF0+gISHJ8+I30zgl6h1ocaPpSr4w=; b=TVDnEiknWAcRrVYjpkVEp+7UlZza/YL/doDnWkXLRwGqJ9YS6xQoSpx94TtYwkM0Zm 9JcQMIFbg+AGr5yblr8fIfyWGtAiWjIILXfM7IITLcHbJNA9fCyb6PLAg+BasgvkoPqY mOu8Q8JEY5ecE/Co/dtC9Acv0384Ahf5uv5clQz+i59KnETYFC1wsz8UK5PiDYs/T9n1 cgi/EyRXEgBnePqIEVvybyK+Lmko4rVlZEkLGBTQU7Ct2fceE6jFBcW+cy4RZHOvyaT4 yK6DJECW1VMyuUV4EO4RpgP01Zcz3GnzbCKe0KHKjUI5P8ZOseBMqWLKAA5U3ku+AEek v3mA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=sChX2tjZXXzFm/FF0+gISHJ8+I30zgl6h1ocaPpSr4w=; b=lkLUoCY6OzrrzfBEkFL4x+taxCYRjx4u3oNqWWMfPlvys48sgY3xuPhhMjm4AfKFm1 inVA8iexcAgnUinJbxEM9BCmY09JWkZMHpLBgk+WU3W+Ku802xHdepJeJgpCRu3TqG+5 8NehynnH0KRH0jS8ttfrJLW7wJ7UVFyD6fUgqAVrMUjFaiR7w4RD+Jpf7d9XrgMeT2jP gvEOI7HvtqQ6xO6FIdbXPlb/pteIe5D9fmQz70VgEBZSIRIk9BE4iiZfZkN3/tU3OEPg dF2cxW0qQ2OZtnAfx+OfBZWY8+No8Lz4MhpwdQzYhrRCHqCB8Ie68f1hLDRlcC7L3vAB U+0g== X-Gm-Message-State: APjAAAVxjCJ1zJ9n6lCtmZETSdloTxfS+z87GqOnoJ50MYKdAF2+wDDc t2bBjLdEBvyK6rjKIgBrWlQjb0gIdr+VJLolry6LAA== X-Google-Smtp-Source: APXvYqxF5LGbIM5rW+0/RUz7xG/c4ekdZJIfr+EH8zBCsdrd9zerb9uo3Zsk8A9BlRzj6R313IgBGYMpeLNcjo9YvBk= X-Received: by 2002:a19:6a01:: with SMTP id u1mr15820032lfu.141.1563313950958; Tue, 16 Jul 2019 14:52:30 -0700 (PDT) MIME-Version: 1.0 References: <000000000000a55d7d058d51ad4f@google.com> In-Reply-To: <000000000000a55d7d058d51ad4f@google.com> From: Linus Walleij Date: Tue, 16 Jul 2019 23:52:19 +0200 Message-ID: Subject: Re: WARNING in gpio_to_desc To: syzbot , Johan Hovold , Vincent Cuissard Cc: Andrey Konovalov , Bartosz Golaszewski , "open list:GPIO SUBSYSTEM" , "linux-kernel@vger.kernel.org" , linux-usb , syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org On Wed, Jul 10, 2019 at 1:07 PM syzbot wrote: > HEAD commit: 7829a896 usb-fuzzer: main usb gadget fuzzer driver (...) > __gpio_set_value include/asm-generic/gpio.h:104 [inline] > gpio_set_value include/linux/gpio.h:71 [inline] > nfcmrvl_chip_halt+0x4e/0x70 drivers/nfc/nfcmrvl/main.c:259 > nfcmrvl_nci_register_dev+0x2d4/0x378 drivers/nfc/nfcmrvl/main.c:176 > nfcmrvl_probe+0x4e9/0x5e0 drivers/nfc/nfcmrvl/usb.c:344 This bug is somewhere in the drivers/nfc/nfcmrvl* code handling GPIOs. It should be converted to GPIO descriptors and fixed up, see drivers/gpio/TODO for details on how to do this. Johan/Vincent, tell me if you want me to forward the full fuzzing robot crash dump. Yours, Linus Walleij