diff options
Diffstat (limited to 'drivers/base/bus.c')
| -rw-r--r-- | drivers/base/bus.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 98edc7aa4fc4..c82c65fde8a1 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -1322,6 +1322,22 @@ struct device_driver *driver_find(const char *name, struct bus_type *bus) } EXPORT_SYMBOL_GPL(driver_find); +/* + * Warning, the value could go to "removed" instantly after calling this function, so be very + * careful when calling it... + */ +bool bus_is_registered(const struct bus_type *bus) +{ + struct subsys_private *sp = bus_to_subsys(bus); + bool is_initialized = false; + + if (sp) { + is_initialized = true; + subsys_put(sp); + } + return is_initialized; +} + int __init buses_init(void) { bus_kset = kset_create_and_add("bus", &bus_uevent_ops, NULL); |