From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3DEF03148C4; Tue, 25 Nov 2025 11:14:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764069284; cv=none; b=L8qJP1RqqvNJtOcGL3GzhF4G5Kq6Rfl446KFqJBA+GtvArGER98PljTB/zWpPVqFlhDOxlIIe9jC2Os94/N0XeWYFocvkzX1EU9LRCr8c0nJ/Z4pguiUKtOzYaWFM7Wgu92gpVdgdpwSM8bQe50FcAS02jkGtwc4pzA+wpZRSjs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764069284; c=relaxed/simple; bh=ZbTIQfo+qtm21lpbeXPAGmpekhzgYHQyoJTK/6bx07M=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=P5afYdfOvXVoYwWHUeuJ42ZGaQ2k/gQTh+Ljlrnv7XUh3GQ4YfXxp0cYvz2uqkh9bO/Mvodg6+lFxnbsK2vdDqDWBj3O8VomTlRKtwdeebRpgKs9zzw0xBxEkeEP4CMLfpcAjDsxKY0+rzgCrvHYiKGryiS/kb93ZotH88D/M4U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=hyzGnPcy; arc=none smtp.client-ip=198.175.65.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="hyzGnPcy" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1764069283; x=1795605283; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=ZbTIQfo+qtm21lpbeXPAGmpekhzgYHQyoJTK/6bx07M=; b=hyzGnPcyDkwYtxOfixxzz4HbLNXHDEu6OqyanmAEtjMOwTGMJnUD86US tTOJuQnOCV6cflDrcAIWoGbjbLdN1xYEg//dUBCrqNy7o8g2QKK78fAJ6 zWIALl+8KGzd4prmpwcC4vdbyL5cGmqrcPWwA/80WCpqT7t1Rvr3HyuGu vE4Ti3Ha23o4eG6WmH3gFrmTBvyNrsaA9ZjXKEF4tNaQrzyuS/VrTk4s2 uYap/ZzhctXMAoNI3WoBT0no7XZHMdLt/xFBSy0PFVLAWxGWKpONQuD+R 2UFs+bWCJ6u3/WeGmihuYn/yJtk2KPcxCtyztM9TsJdwcUMq2RSWS8gwM A==; X-CSE-ConnectionGUID: C7v0lX36Ry+miSpjdVsu+w== X-CSE-MsgGUID: hMcwmSn2Ryyt80AUH6MN3Q== X-IronPort-AV: E=McAfee;i="6800,10657,11623"; a="65972474" X-IronPort-AV: E=Sophos;i="6.20,225,1758610800"; d="scan'208";a="65972474" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Nov 2025 03:14:42 -0800 X-CSE-ConnectionGUID: t+oNietcR7q6AXzLLxkbvg== X-CSE-MsgGUID: 0jg7QcHpSjStYUMbZIBDiw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.20,225,1758610800"; d="scan'208";a="223583514" Received: from abityuts-desk.ger.corp.intel.com (HELO localhost) ([10.245.244.152]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Nov 2025 03:14:39 -0800 Date: Tue, 25 Nov 2025 13:14:37 +0200 From: Andy Shevchenko To: Konrad Dybcio Cc: guptarud@gmail.com, Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Cameron , David Lechner , Nuno =?iso-8859-1?Q?S=E1?= , Andy Shevchenko , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org Subject: Re: [PATCH v4 5/6] iio: accel: Prevent NULL pointer dereference in interrupt setup Message-ID: References: <20251124-expressatt_nfc_accel_magn_light-v4-0-9c5686ad67e2@gmail.com> <20251124-expressatt_nfc_accel_magn_light-v4-5-9c5686ad67e2@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo On Tue, Nov 25, 2025 at 11:45:22AM +0100, Konrad Dybcio wrote: > On 11/25/25 12:35 AM, Rudraksha Gupta via B4 Relay wrote: > > > > The bmc150_accel_set_interrupt() function assumes that the interrupt > > info is provided. However, when no IRQ is provided, the info pointer > > remains NULL, leading to a kernel oops: > > Hm, are you sure your device really doesn't have a pin connected to > the IC's interrupt line? I don't know the actual case here, but in general such a design occurred in real life. So, shouldn't be a surprise to see another polling only mode connection like this. -- With Best Regards, Andy Shevchenko