diff options
Diffstat (limited to 'drivers/base/bus.c')
| -rw-r--r-- | drivers/base/bus.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 4f53b758ac2b..0a8d075f3e6c 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -30,6 +30,12 @@ static int __must_check bus_rescan_devices_helper(struct device *dev, void *data); +static struct bus_type *bus_get(struct bus_type *bus) +{ + return bus ? container_of(kset_get(&bus->subsys), + struct bus_type, subsys) : NULL; +} + static void bus_put(struct bus_type *bus) { kset_put(&bus->subsys); @@ -127,7 +133,7 @@ static struct sysfs_ops bus_sysfs_ops = { int bus_create_file(struct bus_type * bus, struct bus_attribute * attr) { int error; - if (get_bus(bus)) { + if (bus_get(bus)) { error = sysfs_create_file(&bus->subsys.kobj, &attr->attr); bus_put(bus); } else @@ -137,7 +143,7 @@ int bus_create_file(struct bus_type * bus, struct bus_attribute * attr) void bus_remove_file(struct bus_type * bus, struct bus_attribute * attr) { - if (get_bus(bus)) { + if (bus_get(bus)) { sysfs_remove_file(&bus->subsys.kobj, &attr->attr); bus_put(bus); } @@ -177,7 +183,7 @@ static int driver_helper(struct device *dev, void *data) static ssize_t driver_unbind(struct device_driver *drv, const char *buf, size_t count) { - struct bus_type *bus = get_bus(drv->bus); + struct bus_type *bus = bus_get(drv->bus); struct device *dev; int err = -ENODEV; @@ -204,7 +210,7 @@ static DRIVER_ATTR(unbind, S_IWUSR, NULL, driver_unbind); static ssize_t driver_bind(struct device_driver *drv, const char *buf, size_t count) { - struct bus_type *bus = get_bus(drv->bus); + struct bus_type *bus = bus_get(drv->bus); struct device *dev; int err = -ENODEV; @@ -435,7 +441,7 @@ static inline void remove_deprecated_bus_links(struct device *dev) { } */ int bus_add_device(struct device * dev) { - struct bus_type * bus = get_bus(dev->bus); + struct bus_type * bus = bus_get(dev->bus); int error = 0; if (bus) { @@ -611,7 +617,7 @@ static inline void remove_probe_files(struct bus_type *bus) {} */ int bus_add_driver(struct device_driver *drv) { - struct bus_type * bus = get_bus(drv->bus); + struct bus_type * bus = bus_get(drv->bus); int error = 0; if (!bus) @@ -731,12 +737,6 @@ int device_reprobe(struct device *dev) } EXPORT_SYMBOL_GPL(device_reprobe); -struct bus_type *get_bus(struct bus_type *bus) -{ - return bus ? container_of(kset_get(&bus->subsys), - struct bus_type, subsys) : NULL; -} - /** * find_bus - locate bus by name. * @name: name of bus. |