linux-kernel - [PATCH 4/4] mfd: tc6393xb: Make disable callback return void

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220530192430.2108217-5-u.kleine-koenig@pengutronix.de>
Date:   Mon, 30 May 2022 21:24:30 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Lee Jones <lee.jones@...aro.org>, Daniel Mack <daniel@...que.org>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Robert Jarzmik <robert.jarzmik@...e.fr>
Cc:     linux-kernel@...r.kernel.org, kernel@...gutronix.de,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 4/4] mfd: tc6393xb: Make disable callback return void

All implementations return 0, so simplify accordingly.

This is a preparation for making platform remove callbacks return void.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
---
 arch/arm/mach-pxa/eseries.c  | 3 +--
 arch/arm/mach-pxa/tosa.c     | 4 +---
 drivers/mfd/tc6393xb.c       | 5 ++---
 include/linux/mfd/tc6393xb.h | 2 +-
 4 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index cb7bf6294e12..c0b496300e3f 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -85,11 +85,10 @@ int eseries_tmio_enable(struct platform_device *dev)
 	return 0;
 }
 
-int eseries_tmio_disable(struct platform_device *dev)
+void eseries_tmio_disable(struct platform_device *dev)
 {
 	gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 0);
 	gpio_set_value(GPIO_ESERIES_TMIO_PCLR, 0);
-	return 0;
 }
 
 int eseries_tmio_suspend(struct platform_device *dev)
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 431709725d02..8d97c0d74e8f 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -662,13 +662,11 @@ static int tosa_tc6393xb_enable(struct platform_device *dev)
 	return rc;
 }
 
-static int tosa_tc6393xb_disable(struct platform_device *dev)
+static void tosa_tc6393xb_disable(struct platform_device *dev)
 {
 	gpio_free(TOSA_GPIO_TC6393XB_L3V_ON);
 	gpio_free(TOSA_GPIO_TC6393XB_SUSPEND);
 	gpio_free(TOSA_GPIO_TC6393XB_REST_IN);
-
-	return 0;
 }
 
 static int tosa_tc6393xb_resume(struct platform_device *dev)
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 3d5b14c60e20..7de210f143de 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -734,7 +734,6 @@ static int tc6393xb_remove(struct platform_device *dev)
 {
 	struct tc6393xb_platform_data *tcpd = dev_get_platdata(&dev->dev);
 	struct tc6393xb *tc6393xb = platform_get_drvdata(dev);
-	int ret;
 
 	mfd_remove_devices(&dev->dev);
 
@@ -746,14 +745,14 @@ static int tc6393xb_remove(struct platform_device *dev)
 	if (tc6393xb->gpio.base != -1)
 		gpiochip_remove(&tc6393xb->gpio);
 
-	ret = tcpd->disable(dev);
+	tcpd->disable(dev);
 	clk_disable_unprepare(tc6393xb->clk);
 	iounmap(tc6393xb->scr);
 	release_resource(&tc6393xb->rscr);
 	clk_put(tc6393xb->clk);
 	kfree(tc6393xb);
 
-	return ret;
+	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/include/linux/mfd/tc6393xb.h b/include/linux/mfd/tc6393xb.h
index fcc8e74f0e8d..602b391ed13a 100644
--- a/include/linux/mfd/tc6393xb.h
+++ b/include/linux/mfd/tc6393xb.h
@@ -22,7 +22,7 @@ struct tc6393xb_platform_data {
 	u16	scr_gper;	/* GP Enable */
 
 	int	(*enable)(struct platform_device *dev);
-	int	(*disable)(struct platform_device *dev);
+	void	(*disable)(struct platform_device *dev);
 	int	(*suspend)(struct platform_device *dev);
 	int	(*resume)(struct platform_device *dev);
 
-- 
2.36.1