diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2023-03-17 09:48:40 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2023-03-21 15:59:19 +0100 |
| commit | 21f9fecba25d9ed744385007a18fd3267b786ea0 (patch) | |
| tree | 4b8136fb8f4a57a69af0bfdfe9eab6b0cb01c587 | |
| parent | 226f325973fc830f5ee93f64db9994d5f8602de7 (diff) | |
| download | barebox-21f9fecba25d9ed744385007a18fd3267b786ea0.tar.gz | |
driver: Add unregister_driver()
Registering drivers is one thing, getting rid of them another. Add
unregister_driver() which is used in the coming USB gadget update.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/base/driver.c | 17 | ||||
| -rw-r--r-- | include/driver.h | 2 |
2 files changed, 19 insertions, 0 deletions
diff --git a/drivers/base/driver.c b/drivers/base/driver.c index efbffcdddb..f00be99cdc 100644 --- a/drivers/base/driver.c +++ b/drivers/base/driver.c @@ -405,6 +405,23 @@ int register_driver(struct driver *drv) } EXPORT_SYMBOL(register_driver); +void unregister_driver(struct driver *drv) +{ + struct device *dev; + + list_del(&drv->list); + list_del(&drv->bus_list); + + bus_for_each_device(drv->bus, dev) { + if (dev->driver == drv) { + drv->bus->remove(dev); + dev->driver = NULL; + list_del(&dev->active); + INIT_LIST_HEAD(&dev->active); + } + } +} + struct resource *dev_get_resource(struct device *dev, unsigned long type, int num) { diff --git a/include/driver.h b/include/driver.h index 2cf0190699..5605a3db24 100644 --- a/include/driver.h +++ b/include/driver.h @@ -137,6 +137,8 @@ struct driver { /* Register devices and drivers. */ int register_driver(struct driver *); +void unregister_driver(struct driver *drv); + int register_device(struct device *); /* manualy probe a device |