From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 3A20B12F583; Sun, 28 Jan 2024 16:15:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706458542; cv=none; b=Jd6En0QSIGznTzHhQd6E0fQtGCJ8qhZPG5AmwkQ8CYBqlQR6d5QpcTtCyVfY31BhtH1HExzTjnCMdDwSusY6NvZ1xO4g/q8hL3O0+CQB5gsKqH0IytXZJEGHERFA7JTzXvxdDGLW41pKCkRAX+BFGxTyciz0Wn8aTPZgH4OaOLk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706458542; c=relaxed/simple; bh=DiQgD9NCB54KPjllKj/bkllHla7Fp6tDSo7Fr6H+YsY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HQBgawuT4NfVmhGklSXNod3Af6JpkL83yTBuWVi3sKjFKjPvRhv1lWR8WqyJuOPSTZsZitidzeZkn8TaAVeE5fja7YUSD9fzGbu5rKGYMIGjmOo0Xz5xTY5iy7bCZomraeUTMmlUfeUPph8WfnCpi0HTwYrKPXy0eGmfQ+7ezmU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Uzu/A0QJ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Uzu/A0QJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 051B3C433C7; Sun, 28 Jan 2024 16:15:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706458541; bh=DiQgD9NCB54KPjllKj/bkllHla7Fp6tDSo7Fr6H+YsY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Uzu/A0QJTmE5YZXKhvDa9vFpScKo3nVTTKqe23pbRdJGLe/utD3OfSab4G2+dycJU dFssEPMX3hSeck21mac/DrhznDgafy9wo4Tdz/vi/Iwo+gTtAuUhhqxYEqEOvd/LeJ DbVYpRm57GE2zMaJYXq2yfGUwsIdd43ZGnJfz82btPpubNcWf9Z3VHrnmuRQLyTGsg pQpGFtyiPcI51dbV5sCjdHhPyJX+bS24kZcd8LJEw94CKvNkUtTbToRG4zZpYnLbc3 wEJDFH0rJkr8nxAFqm+omTbMUwyfom2M9Uyxl+bCji06GtN1eyQXQENHtdp8SJUUBz hweGzcroP08Yw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Hans de Goede , Greg Kroah-Hartman , Sasha Levin , eric.piel@tremplin-utc.net Subject: [PATCH AUTOSEL 5.15 11/19] misc: lis3lv02d_i2c: Add missing setting of the reg_ctrl callback Date: Sun, 28 Jan 2024 11:15:08 -0500 Message-ID: <20240128161524.204182-11-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240128161524.204182-1-sashal@kernel.org> References: <20240128161524.204182-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.148 Content-Transfer-Encoding: 8bit From: Hans de Goede [ Upstream commit b1b9f7a494400c0c39f8cd83de3aaa6111c55087 ] The lis3lv02d_i2c driver was missing a line to set the lis3_dev's reg_ctrl callback. lis3_reg_ctrl(on) is called from the init callback, but due to the missing reg_ctrl callback the regulators where never turned off again leading to the following oops/backtrace when detaching the driver: [ 82.313527] ------------[ cut here ]------------ [ 82.313546] WARNING: CPU: 1 PID: 1724 at drivers/regulator/core.c:2396 _regulator_put+0x219/0x230 ... [ 82.313695] RIP: 0010:_regulator_put+0x219/0x230 ... [ 82.314767] Call Trace: [ 82.314770] [ 82.314772] ? _regulator_put+0x219/0x230 [ 82.314777] ? __warn+0x81/0x170 [ 82.314784] ? _regulator_put+0x219/0x230 [ 82.314791] ? report_bug+0x18d/0x1c0 [ 82.314801] ? handle_bug+0x3c/0x80 [ 82.314806] ? exc_invalid_op+0x13/0x60 [ 82.314812] ? asm_exc_invalid_op+0x16/0x20 [ 82.314845] ? _regulator_put+0x219/0x230 [ 82.314857] regulator_bulk_free+0x39/0x60 [ 82.314865] i2c_device_remove+0x22/0xb0 Add the missing setting of the callback so that the regulators properly get turned off again when not used. Signed-off-by: Hans de Goede Link: https://lore.kernel.org/r/20231224183402.95640-1-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/misc/lis3lv02d/lis3lv02d_i2c.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c index 52555d2e824b..ab1db760ba4e 100644 --- a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c +++ b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c @@ -151,6 +151,7 @@ static int lis3lv02d_i2c_probe(struct i2c_client *client, lis3_dev.init = lis3_i2c_init; lis3_dev.read = lis3_i2c_read; lis3_dev.write = lis3_i2c_write; + lis3_dev.reg_ctrl = lis3_reg_ctrl; lis3_dev.irq = client->irq; lis3_dev.ac = lis3lv02d_axis_map; lis3_dev.pm_dev = &client->dev; -- 2.43.0