linux/drivers/uwb, branch v3.17

uwb: init beacon cache entry before registering uwb device

2014-09-08T23:03:21Z

Make sure the uwb_dev->bce entry is set before calling uwb_dev_add in uwbd_dev_onair so that usermode will only see the device after it is properly initialized. This fixes a kernel panic that can occur if usermode tries to access the IEs sysfs attribute of a UWB device before the driver has had a chance to set the beacon cache entry. Signed-off-by: Thomas Pugliese Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

uwb/whci: use correct structure type name in sizeof

2014-08-01T22:48:08Z

Correct typo in the name of the type given to sizeof. Because it is the size of a pointer that is wanted, the typo has no impact on compilation or execution. This problem was found using Coccinelle (http://coccinelle.lip6.fr/). The semantic patch used can be found in message 0 of this patch series. Signed-off-by: Julia Lawall Signed-off-by: Greg Kroah-Hartman

uwb: fix variable set but not used warnings

2014-05-27T22:18:48Z

Fix variable set but not used warnings in UWB. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman

uwb: comment typo fix

2014-05-27T22:18:48Z

Comment typo fix. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman

uwb: whitespace and line length cleanups

2014-05-27T22:18:48Z

Fix whitespace and line length issues reported by checkpatch. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman

uwb: add error messages when reservation establish fails

2014-05-27T21:56:54Z

Add better error messages during the channel change/reservation establish process. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman

uwb: fix channel change failure

2014-05-27T21:56:54Z

Make the transition to the UWB_RSV_STATE_NONE state synchronous so that there is not a race between uwb_rsv_terminate and uwb_rsv_establish. uwb_rsv_terminate would set the rsv->state to UWB_RSV_STATE_NONE but did not release the stream resource until a 320ms timeout had expired. If a user called uwb_rsv_establish during that time, it could fail to establish the reservation because no stream resources were available. This patch removes the timer from the uwb_rsv_terminate process since it is not needed when transitioning to UWB_RSV_STATE_NONE. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman

uwb: don't call spin_unlock_irq in a USB completion handler

2014-04-24T19:45:40Z

This patch converts the use of spin_lock_irq/spin_unlock_irq to spin_lock_irqsave/spin_unlock_irqrestore in uwb_rc_set_drp_cmd_done which is called from a USB completion handler. There are also whitespace cleanups to make checkpatch.pl happy. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman

uwb: adds missing error handling

2014-04-16T21:03:40Z

There is checking NULL before dereferncing but it need to add "return". Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman

uwb: move mutex_lock to error case in uwbd_evt_handle_rc_bp_slot_change

2013-12-20T20:19:44Z

Only acquire rc->uwb_dev.mutex in the error case in uwbd_evt_handle_rc_bp_slot_change. This fixes a bug where establishing a reservation on a new channel will fail if we were unable to establish a reservation on the previous channel due to DRP conflict. If rc->uwb_dev.mutex is acquired in the non-error case when the uwb system is attempting to start beaconing, it will block because the start beaconing code is holding this mutex. This prevents any other notifications from the URC from being processed. In particular, the DRP_AVAILABILITY notification will not be processed during the start beaconing process which can result in a failure to establish a reservation. It is safe to not hold the mutex in the non-error case since the only other place rc->uwb_dev.beacon_slot is accessed is in the same worker thread that uwbd_evt_handle_rc_bp_slot_change executes in. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman