Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Stephen Boyd <sboyd@kernel.org>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= 
        <u.kleine-koenig@pengutronix.de>, linux-kernel@vger.kernel.org,
        patches@lists.linux.dev
Subject: [PATCH 3/6] spmi: pmic-arb: Convert to platform remove callback returning void
Date:   Thu, 13 Apr 2023 15:38:31 -0700
Message-ID: <20230413223834.4084793-4-sboyd@kernel.org>
In-Reply-To: <20230413223834.4084793-1-sboyd@kernel.org>
References: <20230413223834.4084793-1-sboyd@kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

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 <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230306073446.2194048-4-u.kleine-koenig@pengutronix.de
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
---
 drivers/spmi/spmi-pmic-arb.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 8b6a42ab816f..42a593418aad 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -1674,7 +1674,7 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int spmi_pmic_arb_remove(struct platform_device *pdev)
+static void spmi_pmic_arb_remove(struct platform_device *pdev)
 {
 	struct spmi_controller *ctrl = platform_get_drvdata(pdev);
 	struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
@@ -1682,7 +1682,6 @@ static int spmi_pmic_arb_remove(struct platform_device *pdev)
 	irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL);
 	irq_domain_remove(pmic_arb->domain);
 	spmi_controller_put(ctrl);
-	return 0;
 }
 
 static const struct of_device_id spmi_pmic_arb_match_table[] = {
@@ -1693,7 +1692,7 @@ MODULE_DEVICE_TABLE(of, spmi_pmic_arb_match_table);
 
 static struct platform_driver spmi_pmic_arb_driver = {
 	.probe		= spmi_pmic_arb_probe,
-	.remove		= spmi_pmic_arb_remove,
+	.remove_new	= spmi_pmic_arb_remove,
 	.driver		= {
 		.name	= "spmi_pmic_arb",
 		.of_match_table = spmi_pmic_arb_match_table,
-- 
https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git/
https://git.kernel.org/pub/scm/linux/kernel/git/sboyd/spmi.git