From patchwork Wed Dec 27 21:02:35 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: 759134 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 B1675481AA for ; Wed, 27 Dec 2023 21:03:01 +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_Kleine-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-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 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 --- 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; } -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 = platform_get_drvdata(pdev); struct platform_device *clk = apcs->clk; platform_device_unregister(clk); - - return 0; } /* .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); static struct platform_driver qcom_apcs_ipc_driver = { .probe = qcom_apcs_ipc_probe, - .remove = qcom_apcs_ipc_remove, + .remove_new = qcom_apcs_ipc_remove, .driver = { .name = "qcom_apcs_ipc", .of_match_table = qcom_apcs_ipc_of_match, From patchwork Wed Dec 27 21:02:36 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: 758481 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 D071D49F6A 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 1rIb3L-0000sJ-2D; Wed, 27 Dec 2023 22:02:59 +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-001wFB-HN; 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-001ZVk-1k; Wed, 27 Dec 2023 22:02:58 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Jassi Brar Cc: Bjorn Andersson , Konrad Dybcio , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 08/12] mailbox: qcom-ipcc: Convert to platform remove callback returning void Date: Wed, 27 Dec 2023 22:02:36 +0100 Message-ID: <515f199e83af8a6295d38f0127be230bbbd6098b.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-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1791; i=u.kleine-koenig@pengutronix.de; h=from:subject:message-id; bh=dQ7xAWwAr+m6oeIQoY8ovO5/17i2OHqeN97W+/12Du4=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBljJDufzD2oU8+z6pomHH+G4A8o2UtNr9z9PhPb vptCsZeZieJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZYyQ7gAKCRCPgPtYfRL+ Tq7pB/9Dmb/jKMl6/r477Ic9N1qIMXfrf4k1YWh8kVn7VLU0tzEVL5PeORJkHj5yqzysrPTJyTf G88OGmEFNY5XtxMN/p4IpCnkixdN0ZR1EWm6uCQhsLhJwwwsuGsJodiXkfDT6fSjIedCH7nDyAE dZcXeVoWOjztd+8ps5A3NYZkXGg7gAQP40tblN6PIIwMocxKsGLNhKtt71tsf61wu9SMTUMmgwl QwyWpfrV1MOUrtwmwW+DHBh2a6TvxNX7iWVBRYnzFIpdGj/OqHJURKPOdMYNXifhfstSrbWcQCI r78rzCbFkV3luWKwxJVYlsYlLH64Q9wlWKDEUgllPAHT4bMn 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 --- drivers/mailbox/qcom-ipcc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/mailbox/qcom-ipcc.c b/drivers/mailbox/qcom-ipcc.c index f597a1bd5684..d537cc9c4d4b 100644 --- a/drivers/mailbox/qcom-ipcc.c +++ b/drivers/mailbox/qcom-ipcc.c @@ -326,14 +326,12 @@ static int qcom_ipcc_probe(struct platform_device *pdev) return ret; } -static int qcom_ipcc_remove(struct platform_device *pdev) +static void qcom_ipcc_remove(struct platform_device *pdev) { struct qcom_ipcc *ipcc = platform_get_drvdata(pdev); disable_irq_wake(ipcc->irq); irq_domain_remove(ipcc->irq_domain); - - return 0; } static const struct of_device_id qcom_ipcc_of_match[] = { @@ -348,7 +346,7 @@ static const struct dev_pm_ops qcom_ipcc_dev_pm_ops = { static struct platform_driver qcom_ipcc_driver = { .probe = qcom_ipcc_probe, - .remove = qcom_ipcc_remove, + .remove_new = qcom_ipcc_remove, .driver = { .name = "qcom-ipcc", .of_match_table = qcom_ipcc_of_match,