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of/platform: Register of_platform_drivers with an "of:" prefix

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Currently there are some drivers in tree which register both a
platform_driver and an of_platform_driver with the same name.  This is
a temporary situation until all the relevant of_platform_drivers are
converted to be normal platform_drivers.  Until then, this patch gives
all the of_platform_drivers an "of:" prefix to protect against bogus
matches and namespace conflicts.
This commit is contained in:
Grant Likely 2010-07-29 17:55:50 -06:00
parent 22ae782f86
commit 7fb8f881c5
1 changed files with 16 additions and 0 deletions
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16
drivers/of/platform.c
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@ -74,8 +74,22 @@ static void platform_driver_shutdown_shim(struct platform_device *pdev)
*/
int of_register_platform_driver(struct of_platform_driver *drv)
{
char *of_name;
/* setup of_platform_driver to platform_driver adaptors */
drv->platform_driver.driver = drv->driver;
/* Prefix the driver name with 'of:' to avoid namespace collisions
* and bogus matches. There are some drivers in the tree that
* register both an of_platform_driver and a platform_driver with
* the same name. This is a temporary measure until they are all
* cleaned up --gcl July 29, 2010 */
of_name = kmalloc(strlen(drv->driver.name) + 5, GFP_KERNEL);
if (!of_name)
return -ENOMEM;
sprintf(of_name, "of:%s", drv->driver.name);
drv->platform_driver.driver.name = of_name;
if (drv->probe)
drv->platform_driver.probe = platform_driver_probe_shim;
drv->platform_driver.remove = drv->remove;
@ -91,6 +105,8 @@ EXPORT_SYMBOL(of_register_platform_driver);
void of_unregister_platform_driver(struct of_platform_driver *drv)
{
platform_driver_unregister(&drv->platform_driver);
kfree(drv->platform_driver.driver.name);
drv->platform_driver.driver.name = NULL;
}
EXPORT_SYMBOL(of_unregister_platform_driver);