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From: "Michał Kępień" <kernel@kempniu.pl>
To: Jonathan Woithe <jwoithe@just42.net>,
	Darren Hart <dvhart@infradead.org>,
	Andy Shevchenko <andy@infradead.org>
Cc: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 4/4] platform/x86: fujitsu-laptop: cleanup error labels in fujitsu_init()
Date: Tue,  7 Mar 2017 11:15:16 +0100	[thread overview]
Message-ID: <20170307101516.9852-5-kernel@kempniu.pl> (raw)
In-Reply-To: <20170307101516.9852-1-kernel@kempniu.pl>

Error labels currently used in fujitsu_init() are really hard to follow:
some (fail_laptop) indicate which operation has failed, others
(fail_sysfs_group) indicate where unrolling should start and the rest
(fail_platform_driver) is simply confusing.  Change them to follow the
pattern used throughout the rest of the module, i.e. make every label
indicate the first unrolling operation it leads to.

Signed-off-by: Michał Kępień <kernel@kempniu.pl>
---
 drivers/platform/x86/fujitsu-laptop.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 8b2701da4a4e..5bd3f8f8e800 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -1244,60 +1244,60 @@ static int __init fujitsu_init(void)
 
 	ret = acpi_bus_register_driver(&acpi_fujitsu_bl_driver);
 	if (ret)
-		goto fail_acpi;
+		goto err_free_fujitsu_bl;
 
 	/* Register platform stuff */
 
 	fujitsu_bl->pf_device = platform_device_alloc("fujitsu-laptop", -1);
 	if (!fujitsu_bl->pf_device) {
 		ret = -ENOMEM;
-		goto fail_platform_driver;
+		goto err_unregister_acpi;
 	}
 
 	ret = platform_device_add(fujitsu_bl->pf_device);
 	if (ret)
-		goto fail_platform_device1;
+		goto err_put_platform_device;
 
 	ret =
 	    sysfs_create_group(&fujitsu_bl->pf_device->dev.kobj,
 			       &fujitsu_pf_attribute_group);
 	if (ret)
-		goto fail_platform_device2;
+		goto err_del_platform_device;
 
 	ret = platform_driver_register(&fujitsu_pf_driver);
 	if (ret)
-		goto fail_sysfs_group;
+		goto err_remove_sysfs_group;
 
 	/* Register laptop driver */
 
 	fujitsu_laptop = kzalloc(sizeof(struct fujitsu_laptop), GFP_KERNEL);
 	if (!fujitsu_laptop) {
 		ret = -ENOMEM;
-		goto fail_laptop;
+		goto err_unregister_platform_driver;
 	}
 
 	ret = acpi_bus_register_driver(&acpi_fujitsu_laptop_driver);
 	if (ret)
-		goto fail_laptop1;
+		goto err_free_fujitsu_laptop;
 
 	pr_info("driver " FUJITSU_DRIVER_VERSION " successfully loaded\n");
 
 	return 0;
 
-fail_laptop1:
+err_free_fujitsu_laptop:
 	kfree(fujitsu_laptop);
-fail_laptop:
+err_unregister_platform_driver:
 	platform_driver_unregister(&fujitsu_pf_driver);
-fail_sysfs_group:
+err_remove_sysfs_group:
 	sysfs_remove_group(&fujitsu_bl->pf_device->dev.kobj,
 			   &fujitsu_pf_attribute_group);
-fail_platform_device2:
+err_del_platform_device:
 	platform_device_del(fujitsu_bl->pf_device);
-fail_platform_device1:
+err_put_platform_device:
 	platform_device_put(fujitsu_bl->pf_device);
-fail_platform_driver:
+err_unregister_acpi:
 	acpi_bus_unregister_driver(&acpi_fujitsu_bl_driver);
-fail_acpi:
+err_free_fujitsu_bl:
 	kfree(fujitsu_bl);
 
 	return ret;
-- 
2.12.0

  parent reply	other threads:[~2017-03-07 10:15 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-07 10:15 [PATCH v3 0/4] fujitsu_init() cleanup Michał Kępień
2017-03-07 10:15 ` [PATCH v3 1/4] platform/x86: fujitsu-laptop: register backlight device in a separate function Michał Kępień
2017-03-10  9:08   ` Michał Kępień
2017-03-10 10:42     ` Jonathan Woithe
2017-03-10 10:45       ` Michał Kępień
2017-03-07 10:15 ` [PATCH v3 2/4] platform/x86: fujitsu-laptop: sync backlight power status in acpi_fujitsu_laptop_add() Michał Kępień
2017-03-07 10:15 ` [PATCH v3 3/4] platform/x86: fujitsu-laptop: only register backlight device if FUJ02B1 is present Michał Kępień
2017-03-07 10:15 ` Michał Kępień [this message]
2017-03-08  6:49 ` [PATCH v3 0/4] fujitsu_init() cleanup Jonathan Woithe
2017-03-10 10:34 ` Jonathan Woithe

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