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| author | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-12-10 01:36:27 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-01-04 16:18:09 -0800 |
| commit | 93ce3061be212f6280e7ccafa9a7f698a95c6d75 (patch) | |
| tree | a451566360fea86ef597fcd2fe693dce65626f93 | |
| parent | e39b84337b8aed3044683a57741a19e5002225b9 (diff) | |
| download | op-kernel-dev-93ce3061be212f6280e7ccafa9a7f698a95c6d75.zip op-kernel-dev-93ce3061be212f6280e7ccafa9a7f698a95c6d75.tar.gz | |
[PATCH] Driver Core: Add platform_device_del()
Driver core: add platform_device_del function
Having platform_device_del90 allows more straightforward error
handling code in drivers registering platform devices.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/base/platform.c | 45 | ||||
| -rw-r--r-- | include/linux/platform_device.h | 1 |
2 files changed, 31 insertions, 15 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 1091af1..95ecfc4 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -168,7 +168,7 @@ struct platform_device *platform_device_alloc(const char *name, unsigned int id) pa->pdev.dev.release = platform_device_release; } - return pa ? &pa->pdev : NULL; + return pa ? &pa->pdev : NULL; } EXPORT_SYMBOL_GPL(platform_device_alloc); @@ -282,24 +282,13 @@ int platform_device_add(struct platform_device *pdev) EXPORT_SYMBOL_GPL(platform_device_add); /** - * platform_device_register - add a platform-level device - * @pdev: platform device we're adding - * - */ -int platform_device_register(struct platform_device * pdev) -{ - device_initialize(&pdev->dev); - return platform_device_add(pdev); -} - -/** - * platform_device_unregister - remove a platform-level device + * platform_device_del - remove a platform-level device * @pdev: platform device we're removing * * Note that this function will also release all memory- and port-based * resources owned by the device (@dev->resource). */ -void platform_device_unregister(struct platform_device * pdev) +void platform_device_del(struct platform_device *pdev) { int i; @@ -310,9 +299,35 @@ void platform_device_unregister(struct platform_device * pdev) release_resource(r); } - device_unregister(&pdev->dev); + device_del(&pdev->dev); } } +EXPORT_SYMBOL_GPL(platform_device_del); + +/** + * platform_device_register - add a platform-level device + * @pdev: platform device we're adding + * + */ +int platform_device_register(struct platform_device * pdev) +{ + device_initialize(&pdev->dev); + return platform_device_add(pdev); +} + +/** + * platform_device_unregister - unregister a platform-level device + * @pdev: platform device we're unregistering + * + * Unregistration is done in 2 steps. Fisrt we release all resources + * and remove it from the sybsystem, then we drop reference count by + * calling platform_device_put(). + */ +void platform_device_unregister(struct platform_device * pdev) +{ + platform_device_del(pdev); + platform_device_put(pdev); +} /** * platform_device_register_simple diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 17e336f..782090c 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -41,6 +41,7 @@ extern struct platform_device *platform_device_alloc(const char *name, unsigned extern int platform_device_add_resources(struct platform_device *pdev, struct resource *res, unsigned int num); extern int platform_device_add_data(struct platform_device *pdev, void *data, size_t size); extern int platform_device_add(struct platform_device *pdev); +extern void platform_device_del(struct platform_device *pdev); extern void platform_device_put(struct platform_device *pdev); struct platform_driver { |
