linux-kernel - [PATCH 17/30] clk: hisilicon: Convert to platform remove callback returning 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: <20230312161512.2715500-18-u.kleine-koenig@pengutronix.de>
Date:   Sun, 12 Mar 2023 17:14:59 +0100
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 17/30] clk: hisilicon: Convert to platform remove callback returning void

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@...gutronix.de>
---
 drivers/clk/hisilicon/clk-hi3519.c      | 5 ++---
 drivers/clk/hisilicon/clk-hi3559a.c     | 5 ++---
 drivers/clk/hisilicon/crg-hi3516cv300.c | 5 ++---
 drivers/clk/hisilicon/crg-hi3798cv200.c | 5 ++---
 4 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/clk/hisilicon/clk-hi3519.c b/drivers/clk/hisilicon/clk-hi3519.c
index ad0c7f350cf0..b871872d9960 100644
--- a/drivers/clk/hisilicon/clk-hi3519.c
+++ b/drivers/clk/hisilicon/clk-hi3519.c
@@ -162,13 +162,12 @@ static int hi3519_clk_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int hi3519_clk_remove(struct platform_device *pdev)
+static void hi3519_clk_remove(struct platform_device *pdev)
 {
 	struct hi3519_crg_data *crg = platform_get_drvdata(pdev);
 
 	hisi_reset_exit(crg->rstc);
 	hi3519_clk_unregister(pdev);
-	return 0;
 }
 
 
@@ -180,7 +179,7 @@ MODULE_DEVICE_TABLE(of, hi3519_clk_match_table);
 
 static struct platform_driver hi3519_clk_driver = {
 	.probe          = hi3519_clk_probe,
-	.remove		= hi3519_clk_remove,
+	.remove_new	= hi3519_clk_remove,
 	.driver         = {
 		.name   = "hi3519-clk",
 		.of_match_table = hi3519_clk_match_table,
diff --git a/drivers/clk/hisilicon/clk-hi3559a.c b/drivers/clk/hisilicon/clk-hi3559a.c
index 9ea1a80acbe8..4f97638809b7 100644
--- a/drivers/clk/hisilicon/clk-hi3559a.c
+++ b/drivers/clk/hisilicon/clk-hi3559a.c
@@ -810,18 +810,17 @@ static int hi3559av100_crg_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int hi3559av100_crg_remove(struct platform_device *pdev)
+static void hi3559av100_crg_remove(struct platform_device *pdev)
 {
 	struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
 
 	hisi_reset_exit(crg->rstc);
 	crg->funcs->unregister_clks(pdev);
-	return 0;
 }
 
 static struct platform_driver hi3559av100_crg_driver = {
 	.probe		= hi3559av100_crg_probe,
-	.remove		= hi3559av100_crg_remove,
+	.remove_new	= hi3559av100_crg_remove,
 	.driver		= {
 		.name	= "hi3559av100-clock",
 		.of_match_table = hi3559av100_crg_match_table,
diff --git a/drivers/clk/hisilicon/crg-hi3516cv300.c b/drivers/clk/hisilicon/crg-hi3516cv300.c
index 5d4e61c7a429..fe1bd3e3f988 100644
--- a/drivers/clk/hisilicon/crg-hi3516cv300.c
+++ b/drivers/clk/hisilicon/crg-hi3516cv300.c
@@ -284,18 +284,17 @@ static int hi3516cv300_crg_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int hi3516cv300_crg_remove(struct platform_device *pdev)
+static void hi3516cv300_crg_remove(struct platform_device *pdev)
 {
 	struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
 
 	hisi_reset_exit(crg->rstc);
 	crg->funcs->unregister_clks(pdev);
-	return 0;
 }
 
 static struct platform_driver hi3516cv300_crg_driver = {
 	.probe          = hi3516cv300_crg_probe,
-	.remove		= hi3516cv300_crg_remove,
+	.remove_new	= hi3516cv300_crg_remove,
 	.driver         = {
 		.name   = "hi3516cv300-crg",
 		.of_match_table = hi3516cv300_crg_match_table,
diff --git a/drivers/clk/hisilicon/crg-hi3798cv200.c b/drivers/clk/hisilicon/crg-hi3798cv200.c
index 08a19ba776e6..a0b16be1e25d 100644
--- a/drivers/clk/hisilicon/crg-hi3798cv200.c
+++ b/drivers/clk/hisilicon/crg-hi3798cv200.c
@@ -367,18 +367,17 @@ static int hi3798cv200_crg_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int hi3798cv200_crg_remove(struct platform_device *pdev)
+static void hi3798cv200_crg_remove(struct platform_device *pdev)
 {
 	struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
 
 	hisi_reset_exit(crg->rstc);
 	crg->funcs->unregister_clks(pdev);
-	return 0;
 }
 
 static struct platform_driver hi3798cv200_crg_driver = {
 	.probe          = hi3798cv200_crg_probe,
-	.remove		= hi3798cv200_crg_remove,
+	.remove_new	= hi3798cv200_crg_remove,
 	.driver         = {
 		.name   = "hi3798cv200-crg",
 		.of_match_table = hi3798cv200_crg_match_table,
-- 
2.39.1