| 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
| ||
|
Date: Sat, 20 Oct 2012 13:00:15 +0900
From: Chanwoo Choi <cw00.choi@...sung.com>
To: anish kumar <anish198519851985@...il.com>
Cc: gregkh@...uxfoundation.org, myungjoo.ham@...sung.com,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [PATCH] extcon: driver model release call not needed
On 10/20/2012 12:33 PM, anish kumar wrote:
[....]
> How about below?
I agree, but there were some minor issues,
[....]
>
> static const char *muex_name = "mutually_exclusive";
> @@ -813,7 +779,32 @@ EXPORT_SYMBOL_GPL(extcon_dev_register);
> */
> void extcon_dev_unregister(struct extcon_dev *edev)
> {
> - extcon_cleanup(edev, false);
> + mutex_lock(&extcon_dev_list_lock);
> + list_del(&edev->entry);
> + mutex_unlock(&extcon_dev_list_lock);
> +
> + if (!skip && get_device(edev->dev)) {
'skip' variable isn't anymore used and fix indentation as below code
[...]
-----
diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c
index e717bbc..ec7cc84 100644
--- a/drivers/extcon/extcon-class.c
+++ b/drivers/extcon/extcon-class.c
@@ -566,47 +566,9 @@ static int create_extcon_class(void)
return 0;
}
-static void extcon_cleanup(struct extcon_dev *edev, bool skip)
-{
- mutex_lock(&extcon_dev_list_lock);
- list_del(&edev->entry);
- mutex_unlock(&extcon_dev_list_lock);
-
- if (!skip && get_device(edev->dev)) {
- int index;
-
- if (edev->mutually_exclusive && edev->max_supported) {
- for (index = 0; edev->mutually_exclusive[index];
- index++)
- kfree(edev->d_attrs_muex[index].attr.name);
- kfree(edev->d_attrs_muex);
- kfree(edev->attrs_muex);
- }
-
- for (index = 0; index < edev->max_supported; index++)
- kfree(edev->cables[index].attr_g.name);
-
- if (edev->max_supported) {
- kfree(edev->extcon_dev_type.groups);
- kfree(edev->cables);
- }
-
-#if defined(CONFIG_ANDROID)
- if (switch_class)
- class_compat_remove_link(switch_class, edev->dev, NULL);
-#endif
- device_unregister(edev->dev);
- put_device(edev->dev);
- }
-
- kfree(edev->dev);
-}
-
static void extcon_dev_release(struct device *dev)
{
- struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev);
-
- extcon_cleanup(edev, true);
+ kfree(edev->dev);
}
static const char *muex_name = "mutually_exclusive";
@@ -832,7 +794,37 @@ EXPORT_SYMBOL_GPL(extcon_dev_register);
*/
void extcon_dev_unregister(struct extcon_dev *edev)
{
- extcon_cleanup(edev, false);
+ int index;
+
+ mutex_lock(&extcon_dev_list_lock);
+ list_del(&edev->entry);
+ mutex_unlock(&extcon_dev_list_lock);
+
+ if (!get_device(edev->dev))
+ return;
+
+ if (edev->mutually_exclusive && edev->max_supported) {
+ for (index = 0; edev->mutually_exclusive[index];
+ index++)
+ kfree(edev->d_attrs_muex[index].attr.name);
+ kfree(edev->d_attrs_muex);
+ kfree(edev->attrs_muex);
+ }
+
+ for (index = 0; index < edev->max_supported; index++)
+ kfree(edev->cables[index].attr_g.name);
+
+ if (edev->max_supported) {
+ kfree(edev->extcon_dev_type.groups);
+ kfree(edev->cables);
+ }
+
+#if defined(CONFIG_ANDROID)
+ if (switch_class)
+ class_compat_remove_link(switch_class, edev->dev, NULL);
+#endif
+ device_unregister(edev->dev);
+ put_device(edev->dev);
}
EXPORT_SYMBOL_GPL(extcon_dev_unregister);
Thanks,
Chanwoo Choi
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists