From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D5BF244C76 for ; Thu, 12 Dec 2024 14:16:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.194.8.81 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734012965; cv=none; b=ZSNk36quWTE0UyuOJaRyqVag96djhuPHHRVQuQ0YfF+2ZckZEg5d7yqQkeYnJCMebrbQD48mBnyCpFZxP4IFREt0/5NFNCLIVjC1ChhaFeKqKsc5WH0I3agtPAG+QG8LxAS6/I2LlOD7TvBRm/FAuFYRvb1wshDUX9um96HCbb8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734012965; c=relaxed/simple; bh=088IuPWRDgUJCH0ISxjtKh5CPwEuOvZyXEosCcA4Rag=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=sAVR6ZxQm5tFcUIoC3hu+uYe4B+AxegTI4YlfFxiPTT5Icn2GlBhcv+iwEaZaZkRCmHQLUoIsA4/s7gfshJp4MLy5r6pMtpEWaneUxhz0ORimX0d6B8ZTyDoDziG+wJJy+zuH1FOzNcE7sE37UNmjst+36GzQUkmfFgicbtsSb0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it; spf=pass smtp.mailfrom=dolcini.it; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b=SsxpPxyj; arc=none smtp.client-ip=217.194.8.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dolcini.it Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b="SsxpPxyj" Received: from francesco-nb (93-49-2-63.ip317.fastwebnet.it [93.49.2.63]) by mail11.truemail.it (Postfix) with ESMTPA id BF82B1F93C; Thu, 12 Dec 2024 15:10:07 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1734012608; bh=i4gRg92u7heNhpg6vOJodZ+D+uvY+K7mBytkbzc1ihE=; h=From:To:Subject; b=SsxpPxyjcrFcPL6GJbAWr7SkbjA2mgIgBDNV7DIZflXRkx+I7LMuOxUnUZalkOSB3 XZmQls6x+Wih8xfI0T+xNWN13TqjZ82S72idyiFNajWeU0R5YI74RVL5HSufnBz9Zl jrz0iA26EcpACwydg1+T/okRaMJ45ETJq74ZsU3gjAKTo2+QnJsbB0BJUvqMpTrt2j 5/YwGAt1h+qlt2mCL/vRGs2H3fjZ/sHiQXb4wmhgj3KOgxB0ULyADVqFbO9/yW8Iuz Jf4jmOcMJoRjtpvdYV1sSh6sam+Ub+SU+4te43N+Q6ko5IJYYfa0bl60+4fscPB9Sw u/a5cVflb2osw== Date: Thu, 12 Dec 2024 15:10:03 +0100 From: Francesco Dolcini To: linux-pm@vger.kernel.org, imx@lists.linux.dev Cc: Ulf Hansson , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Peng Fan , Marek Vasut , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Lucas Stach Subject: imx8m-blk-ctrl: WARNING, no release() function Message-ID: <20241212141003.GA44219@francesco-nb> Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hello, on v6.13-rc2 (PREEMPT_RT, if it matters), I have the following warning [ 4.615793] ------------[ cut here ]------------ [ 4.615814] Device 'mediablk-mipi-csi2-1' does not have a release() function, it is broken and must be fixed. See Documentation/core-api/kobject.rst. [ 4.618977] WARNING: CPU: 1 PID: 11 at /drivers/base/core.c:2569 device_release+0x80/0x94 [ 4.638974] Modules linked in: ecdh_generic ecc etnaviv(+) rfkill libaes samsung_dsim gpu_sched imx_sdma(+) governor_userspace imx_bus dwc3_imx8mp spi_nxp_fspi lontium_lt8912b ina2xx snd_soc_wm8904 ti_ads1015 industrialio_triggered_buffer kfifo_buf lm75 snvs_pwrkey pwm_imx27 nvmem_snvs_lpgpr imx8mm_thermal caam flexcan error can_dev spi_imx usb_conn_gpio display_connector roles gpio_keys fuse ipv6 autofs4 [ 4.639073] CPU: 1 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.13.0-rc2-0.0.0-devel-00040-ga1625b19385c #1 [ 4.639082] Hardware name: Toradex Verdin iMX8M Plus WB on Dahlia Board (DT) [ 4.639087] Workqueue: events_unbound deferred_probe_work_func [ 4.639099] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 4.639107] pc : device_release+0x80/0x94 [ 4.639116] lr : device_release+0x80/0x94 [ 4.639122] sp : ffff80008142b910 [ 4.639125] x29: ffff80008142b910 x28: 00000000fffffdfb x27: ffff000005c92180 [ 4.639137] x26: ffff000000018028 x25: ffff000000046dc0 x24: ffff800080c43710 [ 4.639147] x23: 0000000100000001 x22: 0000000000000000 x21: ffff800080e43750 [ 4.639158] x20: 0000000000000000 x19: ffff000007cb06d8 x18: 0000000000000006 [ 4.639168] x17: 0000000000000001 x16: 0000000000000000 x15: 0000000000000002 [ 4.639179] x14: 0000000000001400 x13: ffff0000000a9110 x12: 0000000000225510 [ 4.639190] x11: 0000000000000000 x10: 00000000000009c0 x9 : ffff80008142b790 [ 4.639200] x8 : ffff00000013bba0 x7 : 000000000000002d x6 : 000000000113158e [ 4.639210] x5 : 00000001134e0800 x4 : 0000000000000002 x3 : ffff000003b04c50 [ 4.639221] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00000013b180 [ 4.639231] Call trace: [ 4.639235] device_release+0x80/0x94 (P) [ 4.639245] device_release+0x80/0x94 (L) [ 4.639253] kobject_put+0xb0/0x214 [ 4.639264] put_device+0x14/0x24 [ 4.639272] genpd_remove+0x114/0x248 [ 4.639281] pm_genpd_remove+0x30/0x58 [ 4.639288] imx8m_blk_ctrl_probe+0x36c/0x540 [ 4.639299] platform_probe+0x68/0xdc [ 4.639308] really_probe+0xc0/0x39c [ 4.639315] __driver_probe_device+0x7c/0x14c [ 4.639322] driver_probe_device+0x3c/0x120 [ 4.639329] __device_attach_driver+0xbc/0x160 [ 4.639336] bus_for_each_drv+0x88/0xe8 [ 4.639346] __device_attach+0xa0/0x1b4 [ 4.639353] device_initial_probe+0x14/0x20 [ 4.639360] bus_probe_device+0xb0/0xbc [ 4.639366] deferred_probe_work_func+0xa0/0xf0 [ 4.639373] process_one_work+0x148/0x284 [ 4.639383] worker_thread+0x2d0/0x3e4 [ 4.639391] kthread+0x110/0x114 [ 4.639399] ret_from_fork+0x10/0x20 [ 4.639409] ---[ end trace 0000000000000000 ]--- and more for other devices, from the same driver. Just reporting for the moment, in case someone has some ideas or wants to have a look. Francesco