diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2010-10-20 11:45:13 -0600 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-10-21 11:10:10 -0600 |
| commit | 7096d0422153ffcc2264eef652fc3a7bca3e6d3c (patch) | |
| tree | 2be6139f1e26acb4d0680e50a87623bc18938147 /drivers/of/device.c | |
| parent | bda80da469a93122121de601dd469ce1aaa6effa (diff) | |
| download | lwn-7096d0422153ffcc2264eef652fc3a7bca3e6d3c.tar.gz lwn-7096d0422153ffcc2264eef652fc3a7bca3e6d3c.zip | |
of/device: Rework to use common platform_device_alloc() for allocating devices
The current code allocates and manages platform_devices created from
the device tree manually. It also uses an unsafe shortcut for
allocating the platform_device and the resource table at the same
time. (which I added in the last rework; sorry).
This patch refactors the code to use platform_device_alloc() for
allocating new devices. This reduces the amount of custom code
implemented by of_platform, eliminates the unsafe alloc trick, and has
the side benefit of letting the platform_bus code manage freeing the
device data and resources when the device is freed.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'drivers/of/device.c')
| -rw-r--r-- | drivers/of/device.c | 27 |
1 files changed, 7 insertions, 20 deletions
diff --git a/drivers/of/device.c b/drivers/of/device.c index 92de0eb74aea..45d86530799f 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -81,29 +81,10 @@ struct device_attribute of_platform_device_attrs[] = { __ATTR_NULL }; -/** - * of_release_dev - free an of device structure when all users of it are finished. - * @dev: device that's been disconnected - * - * Will be called only by the device core when all users of this of device are - * done. - */ -void of_release_dev(struct device *dev) -{ - struct platform_device *ofdev; - - ofdev = to_platform_device(dev); - of_node_put(ofdev->dev.of_node); - kfree(ofdev); -} -EXPORT_SYMBOL(of_release_dev); - -int of_device_register(struct platform_device *ofdev) +int of_device_add(struct platform_device *ofdev) { BUG_ON(ofdev->dev.of_node == NULL); - device_initialize(&ofdev->dev); - /* name and id have to be set so that the platform bus doesn't get * confused on matching */ ofdev->name = dev_name(&ofdev->dev); @@ -117,6 +98,12 @@ int of_device_register(struct platform_device *ofdev) return device_add(&ofdev->dev); } + +int of_device_register(struct platform_device *pdev) +{ + device_initialize(&pdev->dev); + return of_device_add(pdev); +} EXPORT_SYMBOL(of_device_register); void of_device_unregister(struct platform_device *ofdev) |