diff options
Diffstat (limited to 'drivers/base/dd.c')
| -rw-r--r-- | drivers/base/dd.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/base/dd.c b/drivers/base/dd.c index c9f54089429b..fb4e2df68d95 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -122,9 +122,7 @@ static void deferred_probe_work_func(struct work_struct *work) * the list is a good order for suspend but deferred * probe makes that very unsafe. */ - device_pm_lock(); - device_pm_move_last(dev); - device_pm_unlock(); + device_pm_move_to_tail(dev); dev_dbg(dev, "Retrying from deferred list\n"); if (initcall_debug && !initcalls_done) @@ -582,7 +580,7 @@ int driver_probe_device(struct device_driver *drv, struct device *dev) pr_debug("bus: '%s': %s: matched device %s with driver %s\n", drv->bus->name, __func__, dev_name(dev), drv->name); - pm_runtime_get_suppliers(dev); + pm_runtime_resume_suppliers(dev); if (dev->parent) pm_runtime_get_sync(dev->parent); @@ -593,7 +591,6 @@ int driver_probe_device(struct device_driver *drv, struct device *dev) if (dev->parent) pm_runtime_put(dev->parent); - pm_runtime_put_suppliers(dev); return ret; } @@ -817,13 +814,13 @@ static int __driver_attach(struct device *dev, void *data) return ret; } /* ret > 0 means positive match */ - if (dev->parent) /* Needed for USB */ + if (dev->parent && dev->bus->need_parent_lock) device_lock(dev->parent); device_lock(dev); if (!dev->driver) driver_probe_device(drv, dev); device_unlock(dev); - if (dev->parent) + if (dev->parent && dev->bus->need_parent_lock) device_unlock(dev->parent); return 0; @@ -919,7 +916,7 @@ void device_release_driver_internal(struct device *dev, struct device_driver *drv, struct device *parent) { - if (parent) + if (parent && dev->bus->need_parent_lock) device_lock(parent); device_lock(dev); @@ -927,7 +924,7 @@ void device_release_driver_internal(struct device *dev, __device_release_driver(dev, parent); device_unlock(dev); - if (parent) + if (parent && dev->bus->need_parent_lock) device_unlock(parent); } |