From patchwork Mon Nov 28 09:28:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 13057193 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1071C433FE for ; Mon, 28 Nov 2022 09:30:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229908AbiK1JaH (ORCPT ); Mon, 28 Nov 2022 04:30:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54124 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230026AbiK1JaG (ORCPT ); Mon, 28 Nov 2022 04:30:06 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B035FE5F for ; Mon, 28 Nov 2022 01:29:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669627746; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=SDskJ7vo1a1Hiq3qrkNtaRfwZXgO3pqn8Y5UzwULJ20=; b=Dfgmmi8sWr92LG4G2DCOhX9gtO044djpkrofbqEl3XsRqZ2MIbOGIAzlPB4W8MoUu0fu43 2U/vfTXKjN78BsxOOPEdJh7rIxjjMlSEHPKNz8ZqUYc16mODbbFoF4mwj7k1jaKuHRbpgp UC3ylNE8fgy3Y+C1c1zpJTAlZPsC2J4= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-259-xs28wl66NjmOt_juApACWg-1; Mon, 28 Nov 2022 04:29:01 -0500 X-MC-Unique: xs28wl66NjmOt_juApACWg-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 91C43886063; Mon, 28 Nov 2022 09:29:01 +0000 (UTC) Received: from x1.localdomain.com (unknown [10.39.195.70]) by smtp.corp.redhat.com (Postfix) with ESMTP id A184CFD48; Mon, 28 Nov 2022 09:29:00 +0000 (UTC) From: Hans de Goede To: Sebastian Reichel , Marek Vasut Cc: Hans de Goede , linux-pm@vger.kernel.org Subject: [PATCH v2 1/9] power: supply: bq25890: Ensure pump_express_work is cancelled on remove Date: Mon, 28 Nov 2022 10:28:48 +0100 Message-Id: <20221128092856.71619-2-hdegoede@redhat.com> In-Reply-To: <20221128092856.71619-1-hdegoede@redhat.com> References: <20221128092856.71619-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The pump_express_work which gets queued from an external_power_changed callback might be pending / running on remove() (or on probe failure). Add a devm action cancelling the work, to ensure that it is cancelled. Note the devm action is added before devm_power_supply_register(), making it run after devm unregisters the power_supply, so that the work cannot be queued anymore (this is also why a devm action is used for this). Fixes: 48f45b094dbb ("power: supply: bq25890: Support higher charging voltages through Pump Express+ protocol") Reviewed-by: Marek Vasut Signed-off-by: Hans de Goede --- Changes in v2: - Add comment that the devm_add_action() call must be done before devm registering the power_supply, to guarantee it running after the unregister --- drivers/power/supply/bq25890_charger.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c index 512c81662eea..866c475bb735 100644 --- a/drivers/power/supply/bq25890_charger.c +++ b/drivers/power/supply/bq25890_charger.c @@ -1317,6 +1317,13 @@ static int bq25890_fw_probe(struct bq25890_device *bq) return 0; } +static void bq25890_non_devm_cleanup(void *data) +{ + struct bq25890_device *bq = data; + + cancel_delayed_work_sync(&bq->pump_express_work); +} + static int bq25890_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -1372,6 +1379,14 @@ static int bq25890_probe(struct i2c_client *client) /* OTG reporting */ bq->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); + /* + * This must be before bq25890_power_supply_init(), so that it runs + * after devm unregisters the power_supply. + */ + ret = devm_add_action_or_reset(dev, bq25890_non_devm_cleanup, bq); + if (ret) + return ret; + ret = bq25890_register_regulator(bq); if (ret) return ret;