diff options
Diffstat (limited to 'drivers/base/bus.c')
| -rw-r--r-- | drivers/base/bus.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/base/bus.c b/drivers/base/bus.c index ef6183306b40..8bfd27ec73d6 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -184,10 +184,10 @@ static ssize_t unbind_store(struct device_driver *drv, const char *buf, dev = bus_find_device_by_name(bus, NULL, buf); if (dev && dev->driver == drv) { - if (dev->parent) /* Needed for USB */ + if (dev->parent && dev->bus->need_parent_lock) device_lock(dev->parent); device_release_driver(dev); - if (dev->parent) + if (dev->parent && dev->bus->need_parent_lock) device_unlock(dev->parent); err = count; } @@ -211,12 +211,12 @@ static ssize_t bind_store(struct device_driver *drv, const char *buf, dev = bus_find_device_by_name(bus, NULL, buf); if (dev && dev->driver == NULL && driver_match_device(drv, dev)) { - if (dev->parent) /* Needed for USB */ + if (dev->parent && bus->need_parent_lock) device_lock(dev->parent); device_lock(dev); err = driver_probe_device(drv, dev); device_unlock(dev); - if (dev->parent) + if (dev->parent && bus->need_parent_lock) device_unlock(dev->parent); if (err > 0) { @@ -735,10 +735,10 @@ static int __must_check bus_rescan_devices_helper(struct device *dev, int ret = 0; if (!dev->driver) { - if (dev->parent) /* Needed for USB */ + if (dev->parent && dev->bus->need_parent_lock) device_lock(dev->parent); ret = device_attach(dev); - if (dev->parent) + if (dev->parent && dev->bus->need_parent_lock) device_unlock(dev->parent); } return ret < 0 ? ret : 0; @@ -770,10 +770,10 @@ EXPORT_SYMBOL_GPL(bus_rescan_devices); int device_reprobe(struct device *dev) { if (dev->driver) { - if (dev->parent) /* Needed for USB */ + if (dev->parent && dev->bus->need_parent_lock) device_lock(dev->parent); device_release_driver(dev); - if (dev->parent) + if (dev->parent && dev->bus->need_parent_lock) device_unlock(dev->parent); } return bus_rescan_devices_helper(dev, NULL); |