From patchwork Fri Mar 3 17:19:48 2023 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: 13159064 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6F863C7EE2F for ; Fri, 3 Mar 2023 17:22:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=V1M7y4TX2MQ7CjEN06FcSlhpQllz/BIS1oXe5d+tdyw=; b=sX/Se0GHxxSL8u 1QXbstCECxxttjYOt0osV33BJw+g0NRfXAWqQwsxeW1fmDb6ea2FWc4pz0nWZhhGshdJlEKfMg7w/ imPCLs/VMro4ieljNZwoTUvKYOox06i5eg4w6AgZ8uQrVpEE5PxJ42RumnbTPki0zlpIcgrtkegte GCb9y7EECTFchiRnrxtQlzbCCTAC+tT/0u5JGpmYEtTPlzHExuiyIuQ/J5yC40Bpxt1bu/fKBAO8z P63Fuf4WxTnCibTJ20HhWYZFt7Ucr1AvvQki3OMuiwN/2orTJBv8wuE+DASj5C3geOrCLeuBaLu+y HBUi/vD+6uxiINlb9vMw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pY97C-006tq0-0F; Fri, 03 Mar 2023 17:22:42 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pY95i-006t5y-EI for linux-amlogic@lists.infradead.org; Fri, 03 Mar 2023 17:21:15 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pY95X-0006jK-SB; Fri, 03 Mar 2023 18:20:59 +0100 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pY95W-001blA-Ey; Fri, 03 Mar 2023 18:20:58 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pY95V-001tk1-Nq; Fri, 03 Mar 2023 18:20:57 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mark Brown , Neil Armstrong , Kevin Hilman Cc: Jerome Brunet , Martin Blumenstingl , linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 34/87] spi: meson-spicc: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 18:19:48 +0100 Message-Id: <20230303172041.2103336-35-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230303172041.2103336-1-u.kleine-koenig@pengutronix.de> References: <20230303172041.2103336-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1809; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=wIKxT+p09a0fMoGZJNJn4gwEKy4eROv6P/ZQUF4MM+k=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAiuOf9Ck8KGreXQk8ppcZGL96mgVOkKETYFH2 8xtL7oh4z6JATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAIrjgAKCRDB/BR4rcrs CWQSB/9bLoPdSsOw65mZJnhNRlSUBlLizDd9TirYEdQHZfdFcOVvkknt9iZgPuk/FYZjWFuI6ms buMjzYfy0p+hYrUr51QImPSpCKWC6PYboFaZ/x4TVWAVKNrd3S/rxkOiZb22E7gjEn3uMXnopPu M8a56KZABV97BXO2hjYLtE1DHJytSPEqK5lRN3coI5A848+uSZBmw/0NkYk9ZjP+orcm66ArLW9 RRNN/vU6rH7z+ek080wVoJkLBln5u1eFo6sH4qUAsbdBljEuT4cMU63VLi35k4a3bYPe2aXacNp 2/lSrSXiuJ6m9PB5n4L4wkobMS4nAlJt/0UIz5czGmGXXzS+ 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.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-amlogic@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230303_092110_506932_E3CC2F8C X-CRM114-Status: GOOD ( 15.59 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.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 (mostly) ignored 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. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Acked-by: Martin Blumenstingl --- drivers/spi/spi-meson-spicc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-meson-spicc.c b/drivers/spi/spi-meson-spicc.c index d47f2623a60f..b9f812837cd6 100644 --- a/drivers/spi/spi-meson-spicc.c +++ b/drivers/spi/spi-meson-spicc.c @@ -910,7 +910,7 @@ static int meson_spicc_probe(struct platform_device *pdev) return ret; } -static int meson_spicc_remove(struct platform_device *pdev) +static void meson_spicc_remove(struct platform_device *pdev) { struct meson_spicc_device *spicc = platform_get_drvdata(pdev); @@ -921,8 +921,6 @@ static int meson_spicc_remove(struct platform_device *pdev) clk_disable_unprepare(spicc->pclk); spi_master_put(spicc->master); - - return 0; } static const struct meson_spicc_data meson_spicc_gx_data = { @@ -967,7 +965,7 @@ MODULE_DEVICE_TABLE(of, meson_spicc_of_match); static struct platform_driver meson_spicc_driver = { .probe = meson_spicc_probe, - .remove = meson_spicc_remove, + .remove_new = meson_spicc_remove, .driver = { .name = "meson-spicc", .of_match_table = of_match_ptr(meson_spicc_of_match), From patchwork Fri Mar 3 17:19:49 2023 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: 13159063 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 05CC3C7EE2D for ; Fri, 3 Mar 2023 17:22:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Pq7L25guuZrxaY8ERfGMTV4qrB8ytbaBZHwlGYzJ4ok=; 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Fri, 03 Mar 2023 18:20:58 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pY95V-001tk5-UR; Fri, 03 Mar 2023 18:20:57 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mark Brown , Neil Armstrong , Kevin Hilman Cc: Jerome Brunet , Martin Blumenstingl , linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 35/87] spi: meson-spifc: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 18:19:49 +0100 Message-Id: <20230303172041.2103336-36-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230303172041.2103336-1-u.kleine-koenig@pengutronix.de> References: <20230303172041.2103336-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1854; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=V5nExC369g9w2BPhMLN/ksgUEQ4NdUM7PLbWh6nlt/U=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAiuTxhgFrMMlWot5x24gJMir9kRj+snNI1jGR Z+3CRX7itaJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAIrkwAKCRDB/BR4rcrs CZl0CACI68St2Bf6RIQ770thnASVOLSkjCSsiGDyaF+/7W/w6EbUczZMf3H2nkSuc8ZGECJaO25 fub+Tq8nvXK4i0fJyAkyJ+CfOfvMxSeFKwHw12QQN2O2yxWm95foQXpMlmSFOD87rb8IENFIMcM aQQoVWrlBs5Ot8I+jfZhZBc+jUkY8IcpHzYcOKAvKkA7s3wKXbPsrLIZsLSzra9CMtvfPmMkrJg JNf/mdx+GeL9mx1VUeLScIs2DRDOiLPuLvCbzlV5Iq4QMuoh/ajurf+r2+s0glY3Kxq4TZugzX+ GpFDcSgWwD4LSL7iqc9IEdpIhao0l0FDhXGHF5Z0y/CazkRN 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.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-amlogic@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230303_092111_706860_6B802189 X-CRM114-Status: GOOD ( 15.50 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.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 (mostly) ignored 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. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Acked-by: Martin Blumenstingl --- drivers/spi/spi-meson-spifc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-meson-spifc.c b/drivers/spi/spi-meson-spifc.c index c8ed7815c4ba..06626f406f68 100644 --- a/drivers/spi/spi-meson-spifc.c +++ b/drivers/spi/spi-meson-spifc.c @@ -355,7 +355,7 @@ static int meson_spifc_probe(struct platform_device *pdev) return ret; } -static int meson_spifc_remove(struct platform_device *pdev) +static void meson_spifc_remove(struct platform_device *pdev) { struct spi_master *master = platform_get_drvdata(pdev); struct meson_spifc *spifc = spi_master_get_devdata(master); @@ -363,8 +363,6 @@ static int meson_spifc_remove(struct platform_device *pdev) pm_runtime_get_sync(&pdev->dev); clk_disable_unprepare(spifc->clk); pm_runtime_disable(&pdev->dev); - - return 0; } #ifdef CONFIG_PM_SLEEP @@ -442,7 +440,7 @@ MODULE_DEVICE_TABLE(of, meson_spifc_dt_match); static struct platform_driver meson_spifc_driver = { .probe = meson_spifc_probe, - .remove = meson_spifc_remove, + .remove_new = meson_spifc_remove, .driver = { .name = "meson-spifc", .of_match_table = of_match_ptr(meson_spifc_dt_match),