{
char *driver_name;
- driver_name = kmalloc(strlen(drv->name) + strlen(drv->bus->name) + 2,
- GFP_KERNEL);
+ driver_name = kasprintf(GFP_KERNEL, "%s:%s", drv->bus->name, drv->name);
if (!driver_name)
return NULL;
- sprintf(driver_name, "%s:%s", drv->bus->name, drv->name);
return driver_name;
}
static void module_create_drivers_dir(struct module_kobject *mk)
{
- if (!mk || mk->drivers_dir)
- return;
+ static DEFINE_MUTEX(drivers_dir_mutex);
- mk->drivers_dir = kobject_create_and_add("drivers", &mk->kobj);
+ mutex_lock(&drivers_dir_mutex);
+ if (mk && !mk->drivers_dir)
+ mk->drivers_dir = kobject_create_and_add("drivers", &mk->kobj);
+ mutex_unlock(&drivers_dir_mutex);
}
void module_add_driver(struct module *mod, struct device_driver *drv)