diff options
| author | Greg Kroah-Hartman <gregkh@suse.de> | 2007-04-09 11:52:31 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-04-27 10:57:30 -0700 |
| commit | 341487a837c02cbd674d4751061e7d098b0b8e98 (patch) | |
| tree | 58166480d534a86f7b096b81572bd51c8dad031d /drivers/usb/core/driver.c | |
| parent | b7bb125dc3d0ca3f72c9116525ce0f018a9844e1 (diff) | |
USB: remove use of the bus rwsem, as it doesn't really protect anything.
The driver core stopped using the rwsem a long time ago, yet the USB
core still grabbed the lock, thinking it protected something. This
patch removes that useless use.
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Oliver Neukum <oneukum@suse.de>
Cc: David Brownell <david-b@pacbell.net>
Cc: linux-usb-devel <linux-usb-devel@lists.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/driver.c')
| -rw-r--r-- | drivers/usb/core/driver.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 9e3e943f313..e6dd2b9210f 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -287,9 +287,9 @@ static int usb_unbind_interface(struct device *dev) * way to bind to an interface is to return the private data from * the driver's probe() method. * - * Callers must own the device lock and the driver model's usb_bus_type.subsys - * writelock. So driver probe() entries don't need extra locking, - * but other call contexts may need to explicitly claim those locks. + * Callers must own the device lock, so driver probe() entries don't need + * extra locking, but other call contexts may need to explicitly claim that + * lock. */ int usb_driver_claim_interface(struct usb_driver *driver, struct usb_interface *iface, void* priv) @@ -330,9 +330,9 @@ EXPORT_SYMBOL(usb_driver_claim_interface); * also causes the driver disconnect() method to be called. * * This call is synchronous, and may not be used in an interrupt context. - * Callers must own the device lock and the driver model's usb_bus_type.subsys - * writelock. So driver disconnect() entries don't need extra locking, - * but other call contexts may need to explicitly claim those locks. + * Callers must own the device lock, so driver disconnect() entries don't + * need extra locking, but other call contexts may need to explicitly claim + * that lock. */ void usb_driver_release_interface(struct usb_driver *driver, struct usb_interface *iface) |