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From: Yurii Pavlovskyi <yurii.pavlovskyi@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Corentin Chary <corentin.chary@gmail.com>,
	Darren Hart <dvhart@infradead.org>,
	Andy Shevchenko <andy@infradead.org>,
	Daniel Drake <drake@endlessm.com>, Chris Chiu <chiu@endlessm.com>,
	acpi4asus-user@lists.sourceforge.net,
	platform-driver-x86@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v4 01/13] platform/x86: asus-wmi: Fix hwmon device cleanup
Date: Tue, 14 May 2019 20:50:30 +0200	[thread overview]
Message-ID: <e0f78773-518b-b62d-3d95-12225724ea5f@gmail.com> (raw)
In-Reply-To: <c8cdb347-e206-76b2-0d43-546ef660ffb7@gmail.com>

The driver does not clean up the hwmon device on exit or error. To
reproduce the bug, repeat rmmod, insmod to verify that device number
/sys/devices/platform/asus-nb-wmi/hwmon/hwmon?? grows every time. Replace
call for registering device with devm_* version that unregisters it
automatically.

Signed-off-by: Yurii Pavlovskyi <yurii.pavlovskyi@gmail.com>
---
 drivers/platform/x86/asus-wmi.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index f94691615881..62567766bdfb 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -1428,11 +1428,12 @@ __ATTRIBUTE_GROUPS(hwmon_attribute);
 
 static int asus_wmi_hwmon_init(struct asus_wmi *asus)
 {
+	struct device *dev = &asus->platform_device->dev;
 	struct device *hwmon;
 
-	hwmon = hwmon_device_register_with_groups(&asus->platform_device->dev,
-						  "asus", asus,
-						  hwmon_attribute_groups);
+	hwmon = devm_hwmon_device_register_with_groups(dev, "asus", asus,
+			hwmon_attribute_groups);
+
 	if (IS_ERR(hwmon)) {
 		pr_err("Could not register asus hwmon device\n");
 		return PTR_ERR(hwmon);
-- 
2.17.1


  reply	other threads:[~2019-05-14 18:50 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-14 18:47 [PATCH v4 00/13] Support of ASUS TUF Gaming series laptops Yurii Pavlovskyi
2019-05-14 18:50 ` Yurii Pavlovskyi [this message]
2019-05-24 19:54   ` [PATCH v4 01/13] platform/x86: asus-wmi: Fix hwmon device cleanup Daniel Drake
2019-05-14 18:51 ` [PATCH v4 02/13] platform/x86: asus-wmi: Fix preserving keyboard backlight intensity on load Yurii Pavlovskyi
2019-05-24 19:57   ` Daniel Drake
2019-05-14 18:54 ` [PATCH v4 03/13] platform/x86: asus-wmi: Increase input buffer size of WMI methods Yurii Pavlovskyi
2019-05-24 20:01   ` Daniel Drake
2019-05-14 18:59 ` [PATCH v4 04/13] platform/x86: wmi: Add function to get _UID of WMI device Yurii Pavlovskyi
2019-05-24 21:10   ` Daniel Drake
2019-05-14 19:00 ` [PATCH v4 05/13] platform/x86: asus-wmi: Improve DSTS WMI method ID detection Yurii Pavlovskyi
2019-05-14 19:01 ` [PATCH v4 06/13] platform/x86: asus-wmi: Refactor WMI event handling Yurii Pavlovskyi
2019-05-14 19:02 ` [PATCH v4 07/13] platform/x86: asus-wmi: Support WMI event queue Yurii Pavlovskyi
2019-05-14 19:02 ` [PATCH v4 08/13] platform/x86: asus-nb-wmi: Add microphone mute key code Yurii Pavlovskyi
2019-05-14 19:03 ` [PATCH v4 09/13] platform/x86: asus-wmi: Refactor error handling Yurii Pavlovskyi
2019-05-14 19:04 ` [PATCH v4 10/13] platform/x86: asus-wmi: Organize code into sections Yurii Pavlovskyi
2019-05-14 19:05 ` [PATCH v4 11/13] platform/x86: asus-wmi: Enhance detection of thermal data Yurii Pavlovskyi
2019-05-14 19:07 ` [PATCH v4 12/13] platform/x86: asus-wmi: Switch fan boost mode Yurii Pavlovskyi
2019-05-14 19:07 ` [PATCH v4 13/13] platform/x86: asus-wmi: Do not disable keyboard backlight on unloading Yurii Pavlovskyi
2019-06-29 13:13 ` [PATCH v4 00/13] Support of ASUS TUF Gaming series laptops Andy Shevchenko

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