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driver-core: platform: Provide helpers for multi-driver modules

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Some modules register several sub-drivers. Provide a helper that makes
it easy to register and unregister a list of sub-drivers, as well as
unwind properly on error.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thierry Reding
2015-09-25 17:29:04 +02:00
committed by Greg Kroah-Hartman
parent 7568fb63f5
commit dbe2256ddd
3 changed files with 83 additions and 0 deletions
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8
include/linux/platform_device.h
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@@ -270,6 +270,14 @@ extern struct platform_device *__platform_create_bundle(
struct resource *res, unsigned int n_res,
const void *data, size_t size, struct module *module);
int __platform_register_drivers(struct platform_driver * const *drivers,
unsigned int count, struct module *owner);
void platform_unregister_drivers(struct platform_driver * const *drivers,
unsigned int count);
#define platform_register_drivers(drivers, count) \
__platform_register_drivers(drivers, count, THIS_MODULE)
/* early platform driver interface */
struct early_platform_driver {
const char *class_str;