[patch] usb: uwb: use correct locking calls for rc data

[tpugliese <thomas.pugliese@xxxxxxxxx>]

The rc object's members can be accessed from both a timer and URB 
callback.  Use spin_*_irq instead of spin_*_bh.

Signed-off-by: Thomas Pugliese <thomas.pugliese@xxxxxxxxx>


diff -uprN -X dontdiff.txt -X linux-3.9.2-vanilla/Documentation/dontdiff linux-3.9.2-vanilla/drivers/uwb/drp.c linux-3.9.2_dev/drivers/uwb/drp.c
--- linux-3.9.2-vanilla/drivers/uwb/drp.c	2013-05-11 09:19:28.000000000 -0500
+++ linux-3.9.2_dev/drivers/uwb/drp.c	2013-05-17 15:48:19.516701777 -0500
@@ -67,14 +67,14 @@ static void uwb_rc_set_drp_cmd_done(stru
 	} else
 		dev_err(&rc->uwb_dev.dev, "SET-DRP-IE: timeout\n");
 
-	spin_lock_bh(&rc->rsvs_lock);
+	spin_lock_irq(&rc->rsvs_lock);
 	if (rc->set_drp_ie_pending > 1) {
 		rc->set_drp_ie_pending = 0;
 		uwb_rsv_queue_update(rc);	
 	} else {
 		rc->set_drp_ie_pending = 0;	
 	}
-	spin_unlock_bh(&rc->rsvs_lock);
+	spin_unlock_irq(&rc->rsvs_lock);
 }
 
 /**
diff -uprN -X dontdiff.txt -X linux-3.9.2-vanilla/Documentation/dontdiff linux-3.9.2-vanilla/drivers/uwb/rsv.c linux-3.9.2_dev/drivers/uwb/rsv.c
--- linux-3.9.2-vanilla/drivers/uwb/rsv.c	2013-05-11 09:19:28.000000000 -0500
+++ linux-3.9.2_dev/drivers/uwb/rsv.c	2013-05-17 15:48:07.148702205 -0500
@@ -872,7 +872,7 @@ void uwb_rsv_queue_update(struct uwb_rc
  */
 void uwb_rsv_sched_update(struct uwb_rc *rc)
 {
-	spin_lock_bh(&rc->rsvs_lock);
+	spin_lock_irq(&rc->rsvs_lock);
 	if (!delayed_work_pending(&rc->rsv_update_work)) {
 		if (rc->set_drp_ie_pending > 0) {
 			rc->set_drp_ie_pending++;
@@ -881,7 +881,7 @@ void uwb_rsv_sched_update(struct uwb_rc
 		uwb_rsv_queue_update(rc);
 	}
 unlock:
-	spin_unlock_bh(&rc->rsvs_lock);
+	spin_unlock_irq(&rc->rsvs_lock);
 }
 
 /*
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