From patchwork Fri Nov 17 09:59:31 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: 13458707 Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F313A7 for ; Fri, 17 Nov 2023 02:00:00 -0800 (PST) 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 1r3vdd-0000Fw-8e; Fri, 17 Nov 2023 10:59:49 +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 1r3vdc-009eG1-Kc; Fri, 17 Nov 2023 10:59:48 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1r3vdc-002zWO-BD; Fri, 17 Nov 2023 10:59:48 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Stephan Gerhold , Andy Gross , Bjorn Andersson , Konrad Dybcio , Loic Poulain , Sergey Ryazanov , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Johannes Berg , netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH net-next 08/10] net: wwan: qcom_bam_dmux: Convert to platform remove callback returning void Date: Fri, 17 Nov 2023 10:59:31 +0100 Message-ID: <20231117095922.876489-9-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0.586.gbc5204569f7d.dirty In-Reply-To: <20231117095922.876489-1-u.kleine-koenig@pengutronix.de> References: <20231117095922.876489-1-u.kleine-koenig@pengutronix.de> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1920; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=I0cFjEm08r7Sa/vJ9WgcsZdF39eVvWjUnKoRRtwRSOg=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlVzmEF/OglZ9axYPnAwVofQSX2s3BG0bx/dQ2C +QUMAS/wAqJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZVc5hAAKCRCPgPtYfRL+ TouEB/9UOKFB8rasl8PENTAGL+VL177GVGlYnmOhAoiYStSVjlTgo2IDJWWEYzwtzXgTMmnC1ZB 7CL8ZNwHmRY5YaJzEqJ2aSkSCkarmKBp2qYGf58S2U89jKys38QcWHW9CbSec1fyanx0O8nwvf+ V0Qbl5B5XXJKb8P74JXK+O2KUg8b1bPhZp1NfltRZd62v1SsknP8EaoYqGf3kzuLCxTLJtCmS5J RTv3QF1GzN9udDDkjhMLbjlaqvQXyGmKUBWi7A1TeR606YFh3ai7znmfsPVn337tQ3Xbxs1IhlE j78kBIiIEoqLI1fZhrAlg5TFs6skoUFtBxMlWs0A/HWpV58u 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-arm-msm@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-König Reviewed-by: Sergey Ryazanov --- drivers/net/wwan/qcom_bam_dmux.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/wwan/qcom_bam_dmux.c b/drivers/net/wwan/qcom_bam_dmux.c index 17d46f4d2913..26ca719fa0de 100644 --- a/drivers/net/wwan/qcom_bam_dmux.c +++ b/drivers/net/wwan/qcom_bam_dmux.c @@ -846,7 +846,7 @@ static int bam_dmux_probe(struct platform_device *pdev) return 0; } -static int bam_dmux_remove(struct platform_device *pdev) +static void bam_dmux_remove(struct platform_device *pdev) { struct bam_dmux *dmux = platform_get_drvdata(pdev); struct device *dev = dmux->dev; @@ -877,8 +877,6 @@ static int bam_dmux_remove(struct platform_device *pdev) disable_irq(dmux->pc_irq); bam_dmux_power_off(dmux); bam_dmux_free_skbs(dmux->tx_skbs, DMA_TO_DEVICE); - - return 0; } static const struct dev_pm_ops bam_dmux_pm_ops = { @@ -893,7 +891,7 @@ MODULE_DEVICE_TABLE(of, bam_dmux_of_match); static struct platform_driver bam_dmux_driver = { .probe = bam_dmux_probe, - .remove = bam_dmux_remove, + .remove_new = bam_dmux_remove, .driver = { .name = "bam-dmux", .pm = &bam_dmux_pm_ops,