From patchwork Thu Mar 14 08:45:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: George Stark X-Patchwork-Id: 781249 Received: from mx1.sberdevices.ru (mx1.sberdevices.ru [37.18.73.165]) (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 BBF196BB46; Thu, 14 Mar 2024 08:46:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=37.18.73.165 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710405979; cv=none; b=DSb2u6hx44wlGbmkyGthPKJbUdJQS84Efc+La543PR/Ks1yDk2B4/vbaYRiruN6r3k5FqlqCoPx0yKzCQvhrG1R15LNPVm4IPRLgnY4EukSqew8zKj7ze9WVNRTamjiTLankxMiw5MWkj0GEjPXto89uvKkpY0+hFXStvj/3yd0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710405979; c=relaxed/simple; bh=ZhwIqYSkHeid7IzpzPz46BYX4vhv51LDlh8l+Z+depo=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=oHlDrx1/IKM2Ur+8BqV5fD3fHr72d8DMFx8mQ5B7E4pubxC35/g2c/67S+OJW6CklKlu7yHTAzJ5kJBmAgYCYGdEmDbD5/t38vUNspwiVQE61qpahdyitHCJ2QIyyC4SrYEVgt8kMCkdUm2ok4TElOr6P4AzesyK8bwG+RsU51Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=salutedevices.com; spf=pass smtp.mailfrom=salutedevices.com; dkim=pass (2048-bit key) header.d=salutedevices.com header.i=@salutedevices.com header.b=llg9699W; arc=none smtp.client-ip=37.18.73.165 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=salutedevices.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=salutedevices.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=salutedevices.com header.i=@salutedevices.com header.b="llg9699W" Received: from p-infra-ksmg-sc-msk01 (localhost [127.0.0.1]) by mx1.sberdevices.ru (Postfix) with ESMTP id 9C1EE100017; Thu, 14 Mar 2024 11:46:14 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.sberdevices.ru 9C1EE100017 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=salutedevices.com; s=mail; t=1710405974; bh=UKhnHyf3Q15t1sWab7Ng1cV9QPOXCfl6k9inzlZSB1c=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=llg9699W2rj5jl7v8yvCPkzJKdUhJpldOk6JTJwKKcOidKi6wgSTIZfXHTxDvt10F GvDRhAcEDAcj55+arFTzbJHLpMRtGGvHVku7AyzTwtiIohc8OQiVARs4qhzcfwHNWX fDT8X3G+CQJK5AEi+icnfhCWbenJaozvYAoDDkmyiiibtCbIIaHaq3+/8JVoyhZjL0 MhZKF0np04TVDbMB8+IoDcEOoR7dmLSESFAEEtPUjk3rB3piPI/rKAQmpJ2Mno+fRu /DmTy1ObF3/BpHT+EYC+/Hjz+PvHK09CX7ExRiJ9Mx8OYGpMMyTsG7OPc7IMQiMFDY 7R+SarmqMTygg== Received: from smtp.sberdevices.ru (p-i-exch-sc-m02.sberdevices.ru [172.16.192.103]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.sberdevices.ru (Postfix) with ESMTPS; Thu, 14 Mar 2024 11:46:14 +0300 (MSK) Received: from localhost.localdomain (100.64.160.123) by p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Thu, 14 Mar 2024 11:46:14 +0300 From: George Stark To: , , , , , , , , , , , , , , , , CC: , , , , George Stark Subject: [PATCH v6 4/9] leds: lp3952: use devm API to cleanup module's resources Date: Thu, 14 Mar 2024 11:45:26 +0300 Message-ID: <20240314084531.1935545-5-gnstark@salutedevices.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240314084531.1935545-1-gnstark@salutedevices.com> References: <20240314084531.1935545-1-gnstark@salutedevices.com> Precedence: bulk X-Mailing-List: linux-leds@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) To p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 183875 [Feb 29 2024] X-KSMG-AntiSpam-Version: 6.1.0.3 X-KSMG-AntiSpam-Envelope-From: gnstark@salutedevices.com X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 7 0.3.7 6d6bf5bd8eea7373134f756a2fd73e9456bb7d1a, {Tracking_from_domain_doesnt_match_to}, FromAlignment: s, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2024/02/29 19:21:00 #23899999 X-KSMG-AntiVirus-Status: Clean, skipped In this driver LEDs are registered using devm_led_classdev_register() so they are automatically unregistered after module's remove() is done. led_classdev_unregister() calls module's led_set_brightness() to turn off the LEDs and that callback uses resources which were destroyed already in module's remove() so use devm API instead of remove(). Also drop explicit turning LEDs off from remove() due to they will be off anyway by led_classdev_unregister(). Signed-off-by: George Stark --- drivers/leds/leds-lp3952.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/leds/leds-lp3952.c b/drivers/leds/leds-lp3952.c index 5d18bbfd1f23..e24bfe686312 100644 --- a/drivers/leds/leds-lp3952.c +++ b/drivers/leds/leds-lp3952.c @@ -207,6 +207,13 @@ static const struct regmap_config lp3952_regmap = { .cache_type = REGCACHE_MAPLE, }; +static void gpio_set_low_action(void *data) +{ + struct lp3952_led_array *priv = (struct lp3952_led_array *)data; + + gpiod_set_value(priv->enable_gpio, 0); +} + static int lp3952_probe(struct i2c_client *client) { int status; @@ -226,6 +233,10 @@ static int lp3952_probe(struct i2c_client *client) return status; } + status = devm_add_action(&client->dev, gpio_set_low_action, priv); + if (status) + return status; + priv->regmap = devm_regmap_init_i2c(client, &lp3952_regmap); if (IS_ERR(priv->regmap)) { int err = PTR_ERR(priv->regmap); @@ -254,15 +265,6 @@ static int lp3952_probe(struct i2c_client *client) return 0; } -static void lp3952_remove(struct i2c_client *client) -{ - struct lp3952_led_array *priv; - - priv = i2c_get_clientdata(client); - lp3952_on_off(priv, LP3952_LED_ALL, false); - gpiod_set_value(priv->enable_gpio, 0); -} - static const struct i2c_device_id lp3952_id[] = { {LP3952_NAME, 0}, {} @@ -274,7 +276,6 @@ static struct i2c_driver lp3952_i2c_driver = { .name = LP3952_NAME, }, .probe = lp3952_probe, - .remove = lp3952_remove, .id_table = lp3952_id, };