Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem

16 files changed, 106 insertions, 89 deletions

diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 8add9b499912..117e0d161780 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -494,9 +494,8 @@ int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
         BT_DBG("sk %p", sk);
 
         add_wait_queue(sk_sleep(sk), &wait);
+        set_current_state(TASK_INTERRUPTIBLE);
         while (sk->sk_state != state) {
-                set_current_state(TASK_INTERRUPTIBLE);
-
                 if (!timeo) {
                         err = -EINPROGRESS;
                         break;
@@ -510,12 +509,13 @@ int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
                 release_sock(sk);
                 timeo = schedule_timeout(timeo);
                 lock_sock(sk);
+                set_current_state(TASK_INTERRUPTIBLE);
 
                 err = sock_error(sk);
                 if (err)
                         break;
         }
-        set_current_state(TASK_RUNNING);
+        __set_current_state(TASK_RUNNING);
         remove_wait_queue(sk_sleep(sk), &wait);
         return err;
 }
diff --git a/net/bluetooth/bnep/bnep.h b/net/bluetooth/bnep/bnep.h
index 8e6c06158f8e..e7ee5314f39a 100644
--- a/net/bluetooth/bnep/bnep.h
+++ b/net/bluetooth/bnep/bnep.h
@@ -155,6 +155,7 @@ struct bnep_session {
         unsigned int  role;
         unsigned long state;
         unsigned long flags;
+        atomic_t      terminate;
         struct task_struct *task;
 
         struct ethhdr eh;
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index ca39fcf010ce..d9edfe8bf9d6 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -484,9 +484,11 @@ static int bnep_session(void *arg)
 
         init_waitqueue_entry(&wait, current);
         add_wait_queue(sk_sleep(sk), &wait);
-        while (!kthread_should_stop()) {
+        while (1) {
                 set_current_state(TASK_INTERRUPTIBLE);
 
+                if (atomic_read(&s->terminate))
+                        break;
                 /* RX */
                 while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
                         skb_orphan(skb);
@@ -504,7 +506,7 @@ static int bnep_session(void *arg)
 
                 schedule();
         }
-        set_current_state(TASK_RUNNING);
+        __set_current_state(TASK_RUNNING);
         remove_wait_queue(sk_sleep(sk), &wait);
 
         /* Cleanup session */
@@ -640,9 +642,10 @@ int bnep_del_connection(struct bnep_conndel_req *req)
         down_read(&bnep_session_sem);
 
         s = __bnep_get_session(req->dst);
-        if (s)
-                kthread_stop(s->task);
-        else
+        if (s) {
+                atomic_inc(&s->terminate);
+                wake_up_process(s->task);
+        } else
                 err = -ENOENT;
 
         up_read(&bnep_session_sem);
diff --git a/net/bluetooth/cmtp/capi.c b/net/bluetooth/cmtp/capi.c
index 040f67b12978..50f0d135eb8f 100644
--- a/net/bluetooth/cmtp/capi.c
+++ b/net/bluetooth/cmtp/capi.c
@@ -386,7 +386,8 @@ static void cmtp_reset_ctr(struct capi_ctr *ctrl)
 
         capi_ctr_down(ctrl);
 
-        kthread_stop(session->task);
+        atomic_inc(&session->terminate);
+        wake_up_process(session->task);
 }
 
 static void cmtp_register_appl(struct capi_ctr *ctrl, __u16 appl, capi_register_params *rp)
diff --git a/net/bluetooth/cmtp/cmtp.h b/net/bluetooth/cmtp/cmtp.h
index db43b54ac9af..c32638dddbf9 100644
--- a/net/bluetooth/cmtp/cmtp.h
+++ b/net/bluetooth/cmtp/cmtp.h
@@ -81,6 +81,7 @@ struct cmtp_session {
 
         char name[BTNAMSIZ];
 
+        atomic_t terminate;
         struct task_struct *task;
 
         wait_queue_head_t wait;
diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index c5b11af908be..521baa4fe835 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -292,9 +292,11 @@ static int cmtp_session(void *arg)
 
         init_waitqueue_entry(&wait, current);
         add_wait_queue(sk_sleep(sk), &wait);
-        while (!kthread_should_stop()) {
+        while (1) {
                 set_current_state(TASK_INTERRUPTIBLE);
 
+                if (atomic_read(&session->terminate))
+                        break;
                 if (sk->sk_state != BT_CONNECTED)
                         break;
 
@@ -307,7 +309,7 @@ static int cmtp_session(void *arg)
 
                 schedule();
         }
-        set_current_state(TASK_RUNNING);
+        __set_current_state(TASK_RUNNING);
         remove_wait_queue(sk_sleep(sk), &wait);
 
         down_write(&cmtp_session_sem);
@@ -380,16 +382,17 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)
 
         if (!(session->flags & (1 << CMTP_LOOPBACK))) {
                 err = cmtp_attach_device(session);
-                if (err < 0)
-                        goto detach;
+                if (err < 0) {
+                        atomic_inc(&session->terminate);
+                        wake_up_process(session->task);
+                        up_write(&cmtp_session_sem);
+                        return err;
+                }
         }
 
         up_write(&cmtp_session_sem);
         return 0;
 
-detach:
-        cmtp_detach_device(session);
-
 unlink:
         __cmtp_unlink_session(session);
 
@@ -414,7 +417,8 @@ int cmtp_del_connection(struct cmtp_conndel_req *req)
                 skb_queue_purge(&session->transmit);
 
                 /* Stop session thread */
-                kthread_stop(session->task);
+                atomic_inc(&session->terminate);
+                wake_up_process(session->task);
         } else
                 err = -ENOENT;
 
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index ec0bc3f60f2e..56943add45cc 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1209,7 +1209,6 @@ static void hci_cmd_timer(unsigned long arg)
 
         BT_ERR("%s command tx timeout", hdev->name);
         atomic_set(&hdev->cmd_cnt, 1);
-        clear_bit(HCI_RESET, &hdev->flags);
         tasklet_schedule(&hdev->cmd_task);
 }
 
@@ -1327,7 +1326,7 @@ int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr)
 
         entry = kzalloc(sizeof(struct bdaddr_list), GFP_KERNEL);
         if (!entry) {
-                return -ENOMEM;
+                err = -ENOMEM;
                 goto err;
         }
 
@@ -2408,7 +2407,10 @@ static void hci_cmd_task(unsigned long arg)
                 if (hdev->sent_cmd) {
                         atomic_dec(&hdev->cmd_cnt);
                         hci_send_frame(skb);
-                        mod_timer(&hdev->cmd_timer,
+                        if (test_bit(HCI_RESET, &hdev->flags))
+                                del_timer(&hdev->cmd_timer);
+                        else
+                                mod_timer(&hdev->cmd_timer,
                                   jiffies + msecs_to_jiffies(HCI_CMD_TIMEOUT));
                 } else {
                         skb_queue_head(&hdev->cmd_q, skb);
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 43b4c2deb7cc..fb68f344c34a 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -764,6 +764,7 @@ static int hidp_session(void *arg)
 
         up_write(&hidp_session_sem);
 
+        kfree(session->rd_data);
         kfree(session);
         return 0;
 }
@@ -841,7 +842,8 @@ static int hidp_setup_input(struct hidp_session *session,
 
         err = input_register_device(input);
         if (err < 0) {
-                hci_conn_put_device(session->conn);
+                input_free_device(input);
+                session->input = NULL;
                 return err;
         }
 
@@ -1044,8 +1046,12 @@ int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock,
         }
 
         err = hid_add_device(session->hid);
-        if (err < 0)
-                goto err_add_device;
+        if (err < 0) {
+                atomic_inc(&session->terminate);
+                wake_up_process(session->task);
+                up_write(&hidp_session_sem);
+                return err;
+        }
 
         if (session->input) {
                 hidp_send_ctrl_message(session,
@@ -1059,12 +1065,6 @@ int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock,
         up_write(&hidp_session_sem);
         return 0;
 
-err_add_device:
-        hid_destroy_device(session->hid);
-        session->hid = NULL;
-        atomic_inc(&session->terminate);
-        wake_up_process(session->task);
-
 unlink:
         hidp_del_timer(session);
 
@@ -1090,7 +1090,6 @@ purge:
 failed:
         up_write(&hidp_session_sem);
 
-        input_free_device(session->input);
         kfree(session);
         return err;
 }
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 3204ba8a701c..b3bdb482bbe6 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1159,9 +1159,8 @@ int __l2cap_wait_ack(struct sock *sk)
         int timeo = HZ/5;
 
         add_wait_queue(sk_sleep(sk), &wait);
-        while ((chan->unacked_frames > 0 && chan->conn)) {
-                set_current_state(TASK_INTERRUPTIBLE);
-
+        set_current_state(TASK_INTERRUPTIBLE);
+        while (chan->unacked_frames > 0 && chan->conn) {
                 if (!timeo)
                         timeo = HZ/5;
 
@@ -1173,6 +1172,7 @@ int __l2cap_wait_ack(struct sock *sk)
                 release_sock(sk);
                 timeo = schedule_timeout(timeo);
                 lock_sock(sk);
+                set_current_state(TASK_INTERRUPTIBLE);
 
                 err = sock_error(sk);
                 if (err)
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 5c36b3e8739c..61f1f623091d 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -235,30 +235,26 @@ static int l2cap_sock_accept(struct socket *sock, struct socket *newsock, int fl
 
         lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
 
-        if (sk->sk_state != BT_LISTEN) {
-                err = -EBADFD;
-                goto done;
-        }
-
         timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
 
         BT_DBG("sk %p timeo %ld", sk, timeo);
 
         /* Wait for an incoming connection. (wake-one). */
         add_wait_queue_exclusive(sk_sleep(sk), &wait);
-        while (!(nsk = bt_accept_dequeue(sk, newsock))) {
+        while (1) {
                 set_current_state(TASK_INTERRUPTIBLE);
-                if (!timeo) {
-                        err = -EAGAIN;
+
+                if (sk->sk_state != BT_LISTEN) {
+                        err = -EBADFD;
                         break;
                 }
 
-                release_sock(sk);
-                timeo = schedule_timeout(timeo);
-                lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
+                nsk = bt_accept_dequeue(sk, newsock);
+                if (nsk)
+                        break;
 
-                if (sk->sk_state != BT_LISTEN) {
-                        err = -EBADFD;
+                if (!timeo) {
+                        err = -EAGAIN;
                         break;
                 }
 
@@ -266,8 +262,12 @@ static int l2cap_sock_accept(struct socket *sock, struct socket *newsock, int fl
                         err = sock_intr_errno(timeo);
                         break;
                 }
+
+                release_sock(sk);
+                timeo = schedule_timeout(timeo);
+                lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
         }
-        set_current_state(TASK_RUNNING);
+        __set_current_state(TASK_RUNNING);
         remove_wait_queue(sk_sleep(sk), &wait);
 
         if (err)
@@ -993,7 +993,7 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int p
         INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
 
         sk->sk_destruct = l2cap_sock_destruct;
-        sk->sk_sndtimeo = msecs_to_jiffies(L2CAP_CONN_TIMEOUT);
+        sk->sk_sndtimeo = L2CAP_CONN_TIMEOUT;
 
         sock_reset_flag(sk, SOCK_ZAPPED);
 
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 5759bb7054f7..5ba3f6df665c 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -62,7 +62,6 @@ static DEFINE_MUTEX(rfcomm_mutex);
 #define rfcomm_lock()   mutex_lock(&rfcomm_mutex)
 #define rfcomm_unlock() mutex_unlock(&rfcomm_mutex)
 
-static unsigned long rfcomm_event;
 
 static LIST_HEAD(session_list);
 
@@ -120,7 +119,6 @@ static inline void rfcomm_schedule(void)
 {
         if (!rfcomm_thread)
                 return;
-        set_bit(RFCOMM_SCHED_WAKEUP, &rfcomm_event);
         wake_up_process(rfcomm_thread);
 }
 
@@ -2038,19 +2036,18 @@ static int rfcomm_run(void *unused)
 
         rfcomm_add_listener(BDADDR_ANY);
 
-        while (!kthread_should_stop()) {
+        while (1) {
                 set_current_state(TASK_INTERRUPTIBLE);
-                if (!test_bit(RFCOMM_SCHED_WAKEUP, &rfcomm_event)) {
-                        /* No pending events. Let's sleep.
-                         * Incoming connections and data will wake us up. */
-                        schedule();
-                }
-                set_current_state(TASK_RUNNING);
+
+                if (kthread_should_stop())
+                        break;
 
                 /* Process stuff */
-                clear_bit(RFCOMM_SCHED_WAKEUP, &rfcomm_event);
                 rfcomm_process_sessions();
+
+                schedule();
         }
+        __set_current_state(TASK_RUNNING);
 
         rfcomm_kill_listener();
 
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 8f01e6b11a70..482722bbc7a0 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -485,11 +485,6 @@ static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int f
 
         lock_sock(sk);
 
-        if (sk->sk_state != BT_LISTEN) {
-                err = -EBADFD;
-                goto done;
-        }
-
         if (sk->sk_type != SOCK_STREAM) {
                 err = -EINVAL;
                 goto done;
@@ -501,19 +496,20 @@ static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int f
 
         /* Wait for an incoming connection. (wake-one). */
         add_wait_queue_exclusive(sk_sleep(sk), &wait);
-        while (!(nsk = bt_accept_dequeue(sk, newsock))) {
+        while (1) {
                 set_current_state(TASK_INTERRUPTIBLE);
-                if (!timeo) {
-                        err = -EAGAIN;
+
+                if (sk->sk_state != BT_LISTEN) {
+                        err = -EBADFD;
                         break;
                 }
 
-                release_sock(sk);
-                timeo = schedule_timeout(timeo);
-                lock_sock(sk);
+                nsk = bt_accept_dequeue(sk, newsock);
+                if (nsk)
+                        break;
 
-                if (sk->sk_state != BT_LISTEN) {
-                        err = -EBADFD;
+                if (!timeo) {
+                        err = -EAGAIN;
                         break;
                 }
 
@@ -521,8 +517,12 @@ static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int f
                         err = sock_intr_errno(timeo);
                         break;
                 }
+
+                release_sock(sk);
+                timeo = schedule_timeout(timeo);
+                lock_sock(sk);
         }
-        set_current_state(TASK_RUNNING);
+        __set_current_state(TASK_RUNNING);
         remove_wait_queue(sk_sleep(sk), &wait);
 
         if (err)
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 4c3621b5e0aa..8270f05e3f1f 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -564,30 +564,26 @@ static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flag
 
         lock_sock(sk);
 
-        if (sk->sk_state != BT_LISTEN) {
-                err = -EBADFD;
-                goto done;
-        }
-
         timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
 
         BT_DBG("sk %p timeo %ld", sk, timeo);
 
         /* Wait for an incoming connection. (wake-one). */
         add_wait_queue_exclusive(sk_sleep(sk), &wait);
-        while (!(ch = bt_accept_dequeue(sk, newsock))) {
+        while (1) {
                 set_current_state(TASK_INTERRUPTIBLE);
-                if (!timeo) {
-                        err = -EAGAIN;
+
+                if (sk->sk_state != BT_LISTEN) {
+                        err = -EBADFD;
                         break;
                 }
 
-                release_sock(sk);
-                timeo = schedule_timeout(timeo);
-                lock_sock(sk);
+                ch = bt_accept_dequeue(sk, newsock);
+                if (ch)
+                        break;
 
-                if (sk->sk_state != BT_LISTEN) {
-                        err = -EBADFD;
+                if (!timeo) {
+                        err = -EAGAIN;
                         break;
                 }
 
@@ -595,8 +591,12 @@ static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flag
                         err = sock_intr_errno(timeo);
                         break;
                 }
+
+                release_sock(sk);
+                timeo = schedule_timeout(timeo);
+                lock_sock(sk);
         }
-        set_current_state(TASK_RUNNING);
+        __set_current_state(TASK_RUNNING);
         remove_wait_queue(sk_sleep(sk), &wait);
 
         if (err)
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 866f269183cf..acb44230b251 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1012,7 +1012,6 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
         cancel_work_sync(&local->reconfig_filter);
 
         ieee80211_clear_tx_pending(local);
-        sta_info_stop(local);
         rate_control_deinitialize(local);
 
         if (skb_queue_len(&local->skb_queue) ||
@@ -1024,6 +1023,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 
         destroy_workqueue(local->workqueue);
         wiphy_unregister(local->hw.wiphy);
+        sta_info_stop(local);
         ieee80211_wep_free(local);
         ieee80211_led_exit(local);
         kfree(local->int_scan_req);
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 645437cfc464..c14865172da7 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -616,6 +616,9 @@ int wiphy_register(struct wiphy *wiphy)
         if (res)
                 goto out_rm_dev;
 
+        rtnl_lock();
+        rdev->wiphy.registered = true;
+        rtnl_unlock();
         return 0;
 
 out_rm_dev:
@@ -647,6 +650,10 @@ void wiphy_unregister(struct wiphy *wiphy)
 {
         struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+        rtnl_lock();
+        rdev->wiphy.registered = false;
+        rtnl_unlock();
+
         rfkill_unregister(rdev->rfkill);
 
         /* protect the device list */
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index c6e4ca6a7d2e..ff574597a854 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -93,7 +93,8 @@ static int wiphy_suspend(struct device *dev, pm_message_t state)
 
         if (rdev->ops->suspend) {
                 rtnl_lock();
-                ret = rdev->ops->suspend(&rdev->wiphy, rdev->wowlan);
+                if (rdev->wiphy.registered)
+                        ret = rdev->ops->suspend(&rdev->wiphy, rdev->wowlan);
                 rtnl_unlock();
         }
 
@@ -112,7 +113,8 @@ static int wiphy_resume(struct device *dev)
 
         if (rdev->ops->resume) {
                 rtnl_lock();
-                ret = rdev->ops->resume(&rdev->wiphy);
+                if (rdev->wiphy.registered)
+                        ret = rdev->ops->resume(&rdev->wiphy);
                 rtnl_unlock();
         }