linux-kernel - [PATCH v2 4/5] platform/x86: int3472: Switch to devm_get

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: <d65e65c1-3a20-6aef-f25a-a261420e8a3d@redhat.com>
Date:   Thu, 28 Sep 2023 14:44:57 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Daniel Scally <djrscally@...il.com>,
        Mark Gross <markgross@...nel.org>
Cc:     linux-gpio@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH v2 4/5] platform/x86: int3472: Switch to devm_get_gpiod()

Switch to devm_get_gpiod() for discrete GPIOs for clks / regulators / LEDs
and let devm do the cleanup for us.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
---
 .../x86/intel/int3472/clk_and_regulator.c     | 23 ++++---------------
 drivers/platform/x86/intel/int3472/discrete.c |  2 +-
 drivers/platform/x86/intel/int3472/led.c      |  7 +-----
 3 files changed, 6 insertions(+), 26 deletions(-)

diff --git a/drivers/platform/x86/intel/int3472/clk_and_regulator.c b/drivers/platform/x86/intel/int3472/clk_and_regulator.c
index 459f96c04ca1..16e36ac0a7b4 100644
--- a/drivers/platform/x86/intel/int3472/clk_and_regulator.c
+++ b/drivers/platform/x86/intel/int3472/clk_and_regulator.c
@@ -177,10 +177,8 @@ int skl_int3472_register_gpio_clock(struct int3472_discrete_device *int3472,
 
 	init.name = kasprintf(GFP_KERNEL, "%s-clk",
 			      acpi_dev_name(int3472->adev));
-	if (!init.name) {
-		ret = -ENOMEM;
-		goto out_put_gpio;
-	}
+	if (!init.name)
+		return -ENOMEM;
 
 	int3472->clock.frequency = skl_int3472_get_clk_frequency(int3472);
 
@@ -206,8 +204,6 @@ int skl_int3472_register_gpio_clock(struct int3472_discrete_device *int3472,
 	clk_unregister(int3472->clock.clk);
 out_free_init_name:
 	kfree(init.name);
-out_put_gpio:
-	gpiod_put(int3472->clock.ena_gpio);
 
 	return ret;
 }
@@ -219,7 +215,6 @@ void skl_int3472_unregister_clock(struct int3472_discrete_device *int3472)
 
 	clkdev_drop(int3472->clock.cl);
 	clk_unregister(int3472->clock.clk);
-	gpiod_put(int3472->clock.ena_gpio);
 }
 
 /*
@@ -266,7 +261,7 @@ int skl_int3472_register_regulator(struct int3472_discrete_device *int3472,
 	struct regulator_config cfg = { };
 	const char *second_sensor = NULL;
 	const struct dmi_system_id *id;
-	int i, j, ret;
+	int i, j;
 
 	id = dmi_first_match(skl_int3472_regulator_second_sensor);
 	if (id)
@@ -309,21 +304,11 @@ int skl_int3472_register_regulator(struct int3472_discrete_device *int3472,
 	int3472->regulator.rdev = regulator_register(int3472->dev,
 						     &int3472->regulator.rdesc,
 						     &cfg);
-	if (IS_ERR(int3472->regulator.rdev)) {
-		ret = PTR_ERR(int3472->regulator.rdev);
-		goto err_free_gpio;
-	}
 
-	return 0;
-
-err_free_gpio:
-	gpiod_put(int3472->regulator.gpio);
-
-	return ret;
+	return PTR_ERR_OR_ZERO(int3472->regulator.rdev);
 }
 
 void skl_int3472_unregister_regulator(struct int3472_discrete_device *int3472)
 {
 	regulator_unregister(int3472->regulator.rdev);
-	gpiod_put(int3472->regulator.gpio);
 }
diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c
index eb0cded5b92a..8171b16882b7 100644
--- a/drivers/platform/x86/intel/int3472/discrete.c
+++ b/drivers/platform/x86/intel/int3472/discrete.c
@@ -119,7 +119,7 @@ skl_int3472_gpiod_get_from_temp_lookup(struct int3472_discrete_device *int3472,
 		return ERR_PTR(ret);
 
 	gpiod_add_lookup_table(lookup);
-	desc = gpiod_get(int3472->dev, func, GPIOD_OUT_LOW);
+	desc = devm_gpiod_get(int3472->dev, func, GPIOD_OUT_LOW);
 	gpiod_remove_lookup_table(lookup);
 
 	return desc;
diff --git a/drivers/platform/x86/intel/int3472/led.c b/drivers/platform/x86/intel/int3472/led.c
index 476cd637fc51..9cbed694e2ca 100644
--- a/drivers/platform/x86/intel/int3472/led.c
+++ b/drivers/platform/x86/intel/int3472/led.c
@@ -39,7 +39,7 @@ int skl_int3472_register_pled(struct int3472_discrete_device *int3472, struct gp
 
 	ret = led_classdev_register(int3472->dev, &int3472->pled.classdev);
 	if (ret)
-		goto err_free_gpio;
+		return ret;
 
 	int3472->pled.lookup.provider = int3472->pled.name;
 	int3472->pled.lookup.dev_id = int3472->sensor_name;
@@ -47,10 +47,6 @@ int skl_int3472_register_pled(struct int3472_discrete_device *int3472, struct gp
 	led_add_lookup(&int3472->pled.lookup);
 
 	return 0;
-
-err_free_gpio:
-	gpiod_put(int3472->pled.gpio);
-	return ret;
 }
 
 void skl_int3472_unregister_pled(struct int3472_discrete_device *int3472)
@@ -60,5 +56,4 @@ void skl_int3472_unregister_pled(struct int3472_discrete_device *int3472)
 
 	led_remove_lookup(&int3472->pled.lookup);
 	led_classdev_unregister(&int3472->pled.classdev);
-	gpiod_put(int3472->pled.gpio);
 }
-- 
2.41.0