From nobody Thu Nov 14 05:16:17 2024 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 B3DC8498BB for ; Wed, 27 Dec 2023 21:03:04 +0000 (UTC) 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 1rIb3K-0000rD-QS; Wed, 27 Dec 2023 22:02:58 +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 1rIb3J-001wF8-9E; Wed, 27 Dec 2023 22:02:58 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1rIb3K-001ZVg-0x; Wed, 27 Dec 2023 22:02:58 +0100 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: Jassi Brar Cc: Bjorn Andersson , Konrad Dybcio , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 07/12] mailbox: qcom-apcs-ipc: Convert to platform remove callback returning void Date: Wed, 27 Dec 2023 22:02:35 +0100 Message-ID: <9e4c20de4cf16ae8cf03a1844a000a17e4ed1990.1703710628.git.u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Developer-Signature: v=1; a=openpgp-sha256; l=1902; i=u.kleine-koenig@pengutronix.de; h=from:subject:message-id; bh=05Aw79eBvCAd2KreU2oJxdpnDsDvRhiwGd7aMF2V4do=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBljJDt5XSagpy/f9wKNc7ifFv9CjOCUmtb4pRYN d382lA2HM2JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZYyQ7QAKCRCPgPtYfRL+ Tho5B/4slMPTrECJh7cRwJNM5OG+HFXibTK9phg2cNi2f7oFi7RzX2fHVe+2AmZCnAAcbvyoCJy VbfJtdkERRfrIwYPGreUAMLJiDfwK4QezgiiIYg/1jmyxYMNL6n07/XOaxndXs1u6tKXXxzbTVa RYtrMvs6DmlFtMSAY6cuJB8tetw2vri+kr/y+yZmM0xB11VFFdQ6LjscPx9VfgNWD04zywbopch mR/QzVVI4U2sHZ1wCJZgExf4tPAyt62l25ytPz8KCYUEBkpbtxm/NmCtmrqRPK2e4lswZ3AsfuZ AiF1GElyr3260sQUDKdC/dfAIGfzSO4dZXcR8RYRiYsGBMOn X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 Content-Transfer-Encoding: quoted-printable 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-kernel@vger.kernel.org The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-K=C3=B6nig --- drivers/mailbox/qcom-apcs-ipc-mailbox.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/mailbox/qcom-apcs-ipc-mailbox.c b/drivers/mailbox/qcom= -apcs-ipc-mailbox.c index 79136fb62f01..7d91e7c016ba 100644 --- a/drivers/mailbox/qcom-apcs-ipc-mailbox.c +++ b/drivers/mailbox/qcom-apcs-ipc-mailbox.c @@ -129,14 +129,12 @@ static int qcom_apcs_ipc_probe(struct platform_device= *pdev) return 0; } =20 -static int qcom_apcs_ipc_remove(struct platform_device *pdev) +static void qcom_apcs_ipc_remove(struct platform_device *pdev) { struct qcom_apcs_ipc *apcs =3D platform_get_drvdata(pdev); struct platform_device *clk =3D apcs->clk; =20 platform_device_unregister(clk); - - return 0; } =20 /* .data is the offset of the ipc register within the global block */ @@ -169,7 +167,7 @@ MODULE_DEVICE_TABLE(of, qcom_apcs_ipc_of_match); =20 static struct platform_driver qcom_apcs_ipc_driver =3D { .probe =3D qcom_apcs_ipc_probe, - .remove =3D qcom_apcs_ipc_remove, + .remove_new =3D qcom_apcs_ipc_remove, .driver =3D { .name =3D "qcom_apcs_ipc", .of_match_table =3D qcom_apcs_ipc_of_match, --=20 2.43.0