linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Alexandru Ardelean <aardelean@deviqon.com>
To: platform-driver-x86@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org
Cc: coproscefalo@gmail.com, hdegoede@redhat.com,
	mgross@linux.intel.com, jic23@kernel.org, linux@deviqon.com,
	Alexandru Ardelean <aardelean@deviqon.com>
Subject: [PATCH 01/10] platform/x86: toshiba_acpi: bind life-time of toshiba_acpi_dev to parent
Date: Wed, 24 Mar 2021 14:55:39 +0200	[thread overview]
Message-ID: <20210324125548.45983-2-aardelean@deviqon.com> (raw)
In-Reply-To: <20210324125548.45983-1-aardelean@deviqon.com>

The 'toshiba_acpi_dev' object is allocated first and free'd last. We can
bind it's life-time to the parent ACPI device object. This is a first step
in using more device-managed allocated functions for this.

The main intent is to try to convert the IIO framework to export only
device-managed functions (i.e. devm_iio_device_alloc() and
devm_iio_device_register()). It's still not 100% sure that this is
possible, but for now, this is the process of taking it slowly in that
direction.

Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
---
 drivers/platform/x86/toshiba_acpi.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index fa7232ad8c39..6d298810b7bf 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -2998,8 +2998,6 @@ static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
 	if (toshiba_acpi)
 		toshiba_acpi = NULL;
 
-	kfree(dev);
-
 	return 0;
 }
 
@@ -3016,6 +3014,7 @@ static const char *find_hci_method(acpi_handle handle)
 
 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
 {
+	struct device *parent = &acpi_dev->dev;
 	struct toshiba_acpi_dev *dev;
 	const char *hci_method;
 	u32 dummy;
@@ -3033,7 +3032,7 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
 		return -ENODEV;
 	}
 
-	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	dev = devm_kzalloc(parent, sizeof(*dev), GFP_KERNEL);
 	if (!dev)
 		return -ENOMEM;
 	dev->acpi_dev = acpi_dev;
@@ -3045,7 +3044,6 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
 	ret = misc_register(&dev->miscdev);
 	if (ret) {
 		pr_err("Failed to register miscdevice\n");
-		kfree(dev);
 		return ret;
 	}
 
-- 
2.30.2


  reply	other threads:[~2021-03-24 12:57 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-24 12:55 [PATCH 00/10] platform/x86: toshiba_acpi: move acpi add/remove to device-managed routines Alexandru Ardelean
2021-03-24 12:55 ` Alexandru Ardelean [this message]
2021-03-29 14:30   ` [PATCH 01/10] platform/x86: toshiba_acpi: bind life-time of toshiba_acpi_dev to parent Jonathan Cameron
2021-03-30  6:49     ` Alexandru Ardelean
2021-03-24 12:55 ` [PATCH 02/10] platform/x86: toshiba_acpi: use devm_add_action_or_reset() for singleton clear Alexandru Ardelean
2021-03-29 14:27   ` Jonathan Cameron
2021-03-24 12:55 ` [PATCH 03/10] platform/x86: toshiba_acpi: bind registration of miscdev object to parent Alexandru Ardelean
2021-03-29 14:33   ` Jonathan Cameron
2021-03-24 12:55 ` [PATCH 04/10] platform/x86: toshiba_acpi: use device-managed functions for input device Alexandru Ardelean
2021-03-29 14:48   ` Jonathan Cameron
2021-03-24 12:55 ` [PATCH 05/10] platform/x86: toshiba_acpi: register backlight with device-managed variant Alexandru Ardelean
2021-03-29 14:50   ` Jonathan Cameron
2021-03-24 12:55 ` [PATCH 06/10] platform/x86: toshiba_acpi: use devm_led_classdev_register() for LEDs Alexandru Ardelean
2021-03-29 14:52   ` Jonathan Cameron
2021-03-24 12:55 ` [PATCH 07/10] platform/x86: toshiba_acpi: use device-managed functions for accelerometer Alexandru Ardelean
2021-03-29 14:54   ` Jonathan Cameron
2021-03-24 12:55 ` [PATCH 08/10] platform/x86: toshiba_acpi: use device-managed for wwan_rfkill management Alexandru Ardelean
2021-03-29 14:57   ` Jonathan Cameron
2021-03-24 12:55 ` [PATCH 09/10] platform/x86: toshiba_acpi: use device-managed for sysfs removal Alexandru Ardelean
2021-03-29 15:09   ` Jonathan Cameron
2021-03-24 12:55 ` [PATCH 10/10] platform/x86: toshiba_acpi: bind proc entries creation to parent Alexandru Ardelean
2021-03-29 15:10   ` Jonathan Cameron
2021-03-29 12:38 ` [PATCH 00/10] platform/x86: toshiba_acpi: move acpi add/remove to device-managed routines Jonathan Cameron
2021-03-29 14:01   ` Alexandru Ardelean
2021-03-30  8:20 ` Hans de Goede
2021-03-30  9:22   ` Alexandru Ardelean
2021-03-30  9:27     ` Hans de Goede

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210324125548.45983-2-aardelean@deviqon.com \
    --to=aardelean@deviqon.com \
    --cc=coproscefalo@gmail.com \
    --cc=hdegoede@redhat.com \
    --cc=jic23@kernel.org \
    --cc=linux-iio@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@deviqon.com \
    --cc=mgross@linux.intel.com \
    --cc=platform-driver-x86@vger.kernel.org \
    --subject='Re: [PATCH 01/10] platform/x86: toshiba_acpi: bind life-time of toshiba_acpi_dev to parent' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).