From patchwork Sun Mar 10 14:38:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 13588139 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (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 B564210EB for ; Sun, 10 Mar 2024 14:39:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710081559; cv=none; b=e0fXdNAtjX3oIiU/hoTic+KFrmAZN9IB9+wgat1SJIhUc9YLanMV7CtbfIUAXX5Au9Thxi+zbhz7sAypmWTLZI2ZOmiTcLjhwOzuPAJkmOrR3MU8NvxB4e3doOpa9ngC6e+7k1Dc6ZJe3BeRO5o/uJh+pUSPwbyCdLxrQu2Ix64= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710081559; c=relaxed/simple; bh=tcCJcDqDYZaFzocjDP4wiXd1T+ypqrL+pY4JYmx+XM0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=XGzAqhpDHH52OD9G32OSJLs4hxEltlMLRL0q/aWlmemtf1zh1z+irjldg3/XuGbOhBJxR7MCHqoXpSeZYkY9tLy7mjb9oCNZ3ftOLi10EZYhEybgeXLx2/LyMkner79HBMbObYRL9gv/5UxGovarztpXRp3NTPQOONbb3wQkpLc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rjKKN-0001Cv-0y; Sun, 10 Mar 2024 15:39:03 +0100 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rjKKK-005XJm-VP; Sun, 10 Mar 2024 15:39:00 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1rjKKK-003TZj-2p; Sun, 10 Mar 2024 15:39:00 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Shenghao Ding , Kevin Lu , Baojun Xu , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai Cc: alsa-devel@alsa-project.org, linux-sound@vger.kernel.org, linux-kbuild@vger.kernel.org, Geert Uytterhoeven , kernel@pengutronix.de Subject: [PATCH] ASoC: tlv320adc3xxx: Don't strip remove function when driver is builtin Date: Sun, 10 Mar 2024 15:38:51 +0100 Message-ID: <20240310143852.397212-2-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1917; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=tcCJcDqDYZaFzocjDP4wiXd1T+ypqrL+pY4JYmx+XM0=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBl7cX8VWtYhL0KtuOOqhLGjI6fvbv4I6W1Z4U92 ZFLuAirQBiJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZe3F/AAKCRCPgPtYfRL+ TvreCACBY53KQpaQ1S6h0Znmi9qhSZ9KGdIbyorjr/T8fAbh7lRp4Yt5ksFJlyqorX1/CRtMZ/+ f/IwumkOihqjbZZvEkm2RiaRJWh7zsaP1F3og52SGJw6r1LGdBGRvB5llSETqFB5Xv96GJlqCpc lu4yP20GOhukwEnAGWKh7zbRH0i8L/0UTI9sPvtgkJ5OeULSH0gYxF5Ji9jrGHRsUJ079s2frcY SoiZYns8FibUBnlCfNRj3aj+9BKf/K0Ku6C9BSjaz3T+FGQXOcJqVNWtXKzyrxJN/u+JdDthkPu gHEmE7wfmdR68YKkD+3eSiXm2VkUNQPK4IWzLbZ8gwKH9rq2 X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-sound@vger.kernel.org Using __exit for the remove function results in the remove callback being discarded with SND_SOC_TLV320ADC3XXX=y. When such a device gets unbound (e.g. using sysfs or hotplug), the driver is just removed without the cleanup being performed. This results in resource leaks. Fix it by compiling in the remove callback unconditionally. This also fixes a W=1 modpost warning: WARNING: modpost: sound/soc/codecs/snd-soc-tlv320adc3xxx: section mismatch in reference: adc3xxx_i2c_driver+0x10 (section: .data) -> adc3xxx_i2c_remove (section: .exit.text) (which only happens with SND_SOC_TLV320ADC3XXX=m). Fixes: e9a3b57efd28 ("ASoC: codec: tlv320adc3xxx: New codec driver") Signed-off-by: Uwe Kleine-König Reviewed-by: Geert Uytterhoeven --- Hello, note that this patch only applies as is after commit 4e8ff3587868 ("ASoC: codecs: tlv320adc3xxx: Wrap adc3xxx_i2c_remove() in __exit_p()") which was the wrong approach to fix the build error. Best regards Uwe sound/soc/codecs/tlv320adc3xxx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) base-commit: 8ffc8b1bbd505e27e2c8439d326b6059c906c9dd diff --git a/sound/soc/codecs/tlv320adc3xxx.c b/sound/soc/codecs/tlv320adc3xxx.c index 420bbf588efe..e100cc9f5c19 100644 --- a/sound/soc/codecs/tlv320adc3xxx.c +++ b/sound/soc/codecs/tlv320adc3xxx.c @@ -1429,7 +1429,7 @@ static int adc3xxx_i2c_probe(struct i2c_client *i2c) return ret; } -static void __exit adc3xxx_i2c_remove(struct i2c_client *client) +static void adc3xxx_i2c_remove(struct i2c_client *client) { struct adc3xxx *adc3xxx = i2c_get_clientdata(client); @@ -1452,7 +1452,7 @@ static struct i2c_driver adc3xxx_i2c_driver = { .of_match_table = tlv320adc3xxx_of_match, }, .probe = adc3xxx_i2c_probe, - .remove = __exit_p(adc3xxx_i2c_remove), + .remove = adc3xxx_i2c_remove, .id_table = adc3xxx_i2c_id, };