Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem

12 files changed, 305 insertions, 164 deletions

diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index f10b41f..5868597 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -648,6 +648,7 @@ int bnep_del_connection(struct bnep_conndel_req *req)
 
 static void __bnep_copy_ci(struct bnep_conninfo *ci, struct bnep_session *s)
 {
+	memset(ci, 0, sizeof(*ci));
 	memcpy(ci->dst, s->eh.h_source, ETH_ALEN);
 	strcpy(ci->device, s->dev->name);
 	ci->flags = s->flags;
diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index ec0a134..8e5f292 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -78,6 +78,7 @@ static void __cmtp_unlink_session(struct cmtp_session *session)
 
 static void __cmtp_copy_session(struct cmtp_session *session, struct cmtp_conninfo *ci)
 {
+	memset(ci, 0, sizeof(*ci));
 	bacpy(&ci->bdaddr, &session->bdaddr);
 
 	ci->flags = session->flags;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 0b1e460..6b90a41 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -39,7 +39,7 @@
 #include <net/sock.h>
 
 #include <asm/system.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -66,7 +66,8 @@ void hci_acl_connect(struct hci_conn *conn)
 	bacpy(&cp.bdaddr, &conn->dst);
 	cp.pscan_rep_mode = 0x02;
 
-	if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) {
+	ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
+	if (ie) {
 		if (inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) {
 			cp.pscan_rep_mode = ie->data.pscan_rep_mode;
 			cp.pscan_mode     = ie->data.pscan_mode;
@@ -368,8 +369,10 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8
 
 	BT_DBG("%s dst %s", hdev->name, batostr(dst));
 
-	if (!(acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst))) {
-		if (!(acl = hci_conn_add(hdev, ACL_LINK, dst)))
+	acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
+	if (!acl) {
+		acl = hci_conn_add(hdev, ACL_LINK, dst);
+		if (!acl)
 			return NULL;
 	}
 
@@ -389,8 +392,10 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8
 	if (type == ACL_LINK)
 		return acl;
 
-	if (!(sco = hci_conn_hash_lookup_ba(hdev, type, dst))) {
-		if (!(sco = hci_conn_add(hdev, type, dst))) {
+	sco = hci_conn_hash_lookup_ba(hdev, type, dst);
+	if (!sco) {
+		sco = hci_conn_add(hdev, type, dst);
+		if (!sco) {
 			hci_conn_put(acl);
 			return NULL;
 		}
@@ -647,10 +652,12 @@ int hci_get_conn_list(void __user *arg)
 
 	size = sizeof(req) + req.conn_num * sizeof(*ci);
 
-	if (!(cl = kmalloc(size, GFP_KERNEL)))
+	cl = kmalloc(size, GFP_KERNEL);
+	if (!cl)
 		return -ENOMEM;
 
-	if (!(hdev = hci_dev_get(req.dev_id))) {
+	hdev = hci_dev_get(req.dev_id);
+	if (!hdev) {
 		kfree(cl);
 		return -ENODEV;
 	}
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index bc2a052..51c61f7 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -44,7 +44,7 @@
 #include <net/sock.h>
 
 #include <asm/system.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -349,20 +349,23 @@ struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *b
 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data)
 {
 	struct inquiry_cache *cache = &hdev->inq_cache;
-	struct inquiry_entry *e;
+	struct inquiry_entry *ie;
 
 	BT_DBG("cache %p, %s", cache, batostr(&data->bdaddr));
 
-	if (!(e = hci_inquiry_cache_lookup(hdev, &data->bdaddr))) {
+	ie = hci_inquiry_cache_lookup(hdev, &data->bdaddr);
+	if (!ie) {
 		/* Entry not in the cache. Add new one. */
-		if (!(e = kzalloc(sizeof(struct inquiry_entry), GFP_ATOMIC)))
+		ie = kzalloc(sizeof(struct inquiry_entry), GFP_ATOMIC);
+		if (!ie)
 			return;
-		e->next     = cache->list;
-		cache->list = e;
+
+		ie->next = cache->list;
+		cache->list = ie;
 	}
 
-	memcpy(&e->data, data, sizeof(*data));
-	e->timestamp = jiffies;
+	memcpy(&ie->data, data, sizeof(*data));
+	ie->timestamp = jiffies;
 	cache->timestamp = jiffies;
 }
 
@@ -422,16 +425,20 @@ int hci_inquiry(void __user *arg)
 
 	hci_dev_lock_bh(hdev);
 	if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX ||
-					inquiry_cache_empty(hdev) ||
-					ir.flags & IREQ_CACHE_FLUSH) {
+				inquiry_cache_empty(hdev) ||
+				ir.flags & IREQ_CACHE_FLUSH) {
 		inquiry_cache_flush(hdev);
 		do_inquiry = 1;
 	}
 	hci_dev_unlock_bh(hdev);
 
 	timeo = ir.length * msecs_to_jiffies(2000);
-	if (do_inquiry && (err = hci_request(hdev, hci_inq_req, (unsigned long)&ir, timeo)) < 0)
-		goto done;
+
+	if (do_inquiry) {
+		err = hci_request(hdev, hci_inq_req, (unsigned long)&ir, timeo);
+		if (err < 0)
+			goto done;
+	}
 
 	/* for unlimited number of responses we will use buffer with 255 entries */
 	max_rsp = (ir.num_rsp == 0) ? 255 : ir.num_rsp;
@@ -439,7 +446,8 @@ int hci_inquiry(void __user *arg)
 	/* cache_dump can't sleep. Therefore we allocate temp buffer and then
 	 * copy it to the user space.
 	 */
-	if (!(buf = kmalloc(sizeof(struct inquiry_info) * max_rsp, GFP_KERNEL))) {
+	buf = kmalloc(sizeof(struct inquiry_info) *max_rsp, GFP_KERNEL);
+	if (!buf) {
 		err = -ENOMEM;
 		goto done;
 	}
@@ -611,7 +619,8 @@ int hci_dev_close(__u16 dev)
 	struct hci_dev *hdev;
 	int err;
 
-	if (!(hdev = hci_dev_get(dev)))
+	hdev = hci_dev_get(dev);
+	if (!hdev)
 		return -ENODEV;
 	err = hci_dev_do_close(hdev);
 	hci_dev_put(hdev);
@@ -623,7 +632,8 @@ int hci_dev_reset(__u16 dev)
 	struct hci_dev *hdev;
 	int ret = 0;
 
-	if (!(hdev = hci_dev_get(dev)))
+	hdev = hci_dev_get(dev);
+	if (!hdev)
 		return -ENODEV;
 
 	hci_req_lock(hdev);
@@ -663,7 +673,8 @@ int hci_dev_reset_stat(__u16 dev)
 	struct hci_dev *hdev;
 	int ret = 0;
 
-	if (!(hdev = hci_dev_get(dev)))
+	hdev = hci_dev_get(dev);
+	if (!hdev)
 		return -ENODEV;
 
 	memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));
@@ -682,7 +693,8 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg)
 	if (copy_from_user(&dr, arg, sizeof(dr)))
 		return -EFAULT;
 
-	if (!(hdev = hci_dev_get(dr.dev_id)))
+	hdev = hci_dev_get(dr.dev_id);
+	if (!hdev)
 		return -ENODEV;
 
 	switch (cmd) {
@@ -763,7 +775,8 @@ int hci_get_dev_list(void __user *arg)
 
 	size = sizeof(*dl) + dev_num * sizeof(*dr);
 
-	if (!(dl = kzalloc(size, GFP_KERNEL)))
+	dl = kzalloc(size, GFP_KERNEL);
+	if (!dl)
 		return -ENOMEM;
 
 	dr = dl->dev_req;
@@ -797,7 +810,8 @@ int hci_get_dev_info(void __user *arg)
 	if (copy_from_user(&di, arg, sizeof(di)))
 		return -EFAULT;
 
-	if (!(hdev = hci_dev_get(di.dev_id)))
+	hdev = hci_dev_get(di.dev_id);
+	if (!hdev)
 		return -ENODEV;
 
 	strcpy(di.name, hdev->name);
@@ -905,7 +919,7 @@ int hci_register_dev(struct hci_dev *hdev)
 	hdev->sniff_max_interval = 800;
 	hdev->sniff_min_interval = 80;
 
-	tasklet_init(&hdev->cmd_task, hci_cmd_task,(unsigned long) hdev);
+	tasklet_init(&hdev->cmd_task, hci_cmd_task, (unsigned long) hdev);
 	tasklet_init(&hdev->rx_task, hci_rx_task, (unsigned long) hdev);
 	tasklet_init(&hdev->tx_task, hci_tx_task, (unsigned long) hdev);
 
@@ -1368,7 +1382,8 @@ void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags)
 	bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
 	hci_add_acl_hdr(skb, conn->handle, flags | ACL_START);
 
-	if (!(list = skb_shinfo(skb)->frag_list)) {
+	list = skb_shinfo(skb)->frag_list;
+	if (!list) {
 		/* Non fragmented */
 		BT_DBG("%s nonfrag skb %p len %d", hdev->name, skb, skb->len);
 
@@ -1609,7 +1624,8 @@ static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_conn_enter_active_mode(conn);
 
 		/* Send to upper protocol */
-		if ((hp = hci_proto[HCI_PROTO_L2CAP]) && hp->recv_acldata) {
+		hp = hci_proto[HCI_PROTO_L2CAP];
+		if (hp && hp->recv_acldata) {
 			hp->recv_acldata(conn, skb, flags);
 			return;
 		}
@@ -1644,7 +1660,8 @@ static inline void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 		register struct hci_proto *hp;
 
 		/* Send to upper protocol */
-		if ((hp = hci_proto[HCI_PROTO_SCO]) && hp->recv_scodata) {
+		hp = hci_proto[HCI_PROTO_SCO];
+		if (hp && hp->recv_scodata) {
 			hp->recv_scodata(conn, skb);
 			return;
 		}
@@ -1727,7 +1744,8 @@ static void hci_cmd_task(unsigned long arg)
 	if (atomic_read(&hdev->cmd_cnt) && (skb = skb_dequeue(&hdev->cmd_q))) {
 		kfree_skb(hdev->sent_cmd);
 
-		if ((hdev->sent_cmd = skb_clone(skb, GFP_ATOMIC))) {
+		hdev->sent_cmd = skb_clone(skb, GFP_ATOMIC);
+		if (hdev->sent_cmd) {
 			atomic_dec(&hdev->cmd_cnt);
 			hci_send_frame(skb);
 			hdev->cmd_last_tx = jiffies;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 84093b0..8923b36 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -39,7 +39,7 @@
 #include <net/sock.h>
 
 #include <asm/system.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -677,9 +677,50 @@ static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
 	hci_dev_unlock(hdev);
 }
 
+static int hci_outgoing_auth_needed(struct hci_dev *hdev,
+						struct hci_conn *conn)
+{
+	if (conn->state != BT_CONFIG || !conn->out)
+		return 0;
+
+	if (conn->sec_level == BT_SECURITY_SDP)
+		return 0;
+
+	/* Only request authentication for SSP connections or non-SSP
+	 * devices with sec_level HIGH */
+	if (!(hdev->ssp_mode > 0 && conn->ssp_mode > 0) &&
+					conn->sec_level != BT_SECURITY_HIGH)
+		return 0;
+
+	return 1;
+}
+
 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
 {
+	struct hci_cp_remote_name_req *cp;
+	struct hci_conn *conn;
+
 	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	/* If successful wait for the name req complete event before
+	 * checking for the need to do authentication */
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
+	if (conn && hci_outgoing_auth_needed(hdev, conn)) {
+		struct hci_cp_auth_requested cp;
+		cp.handle = __cpu_to_le16(conn->handle);
+		hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
+	}
+
+	hci_dev_unlock(hdev);
 }
 
 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
@@ -955,12 +996,14 @@ static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *sk
 
 		hci_dev_lock(hdev);
 
-		if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr)))
+		ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
+		if (ie)
 			memcpy(ie->data.dev_class, ev->dev_class, 3);
 
 		conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
 		if (!conn) {
-			if (!(conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr))) {
+			conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr);
+			if (!conn) {
 				BT_ERR("No memory for new connection");
 				hci_dev_unlock(hdev);
 				return;
@@ -1090,9 +1133,23 @@ static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 
 static inline void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
+	struct hci_ev_remote_name *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
 	BT_DBG("%s", hdev->name);
 
 	hci_conn_check_pending(hdev);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+	if (conn && hci_outgoing_auth_needed(hdev, conn)) {
+		struct hci_cp_auth_requested cp;
+		cp.handle = __cpu_to_le16(conn->handle);
+		hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
+	}
+
+	hci_dev_unlock(hdev);
 }
 
 static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
@@ -1162,33 +1219,39 @@ static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff
 	hci_dev_lock(hdev);
 
 	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
-	if (conn) {
-		if (!ev->status)
-			memcpy(conn->features, ev->features, 8);
+	if (!conn)
+		goto unlock;
 
-		if (conn->state == BT_CONFIG) {
-			if (!ev->status && lmp_ssp_capable(hdev) &&
-						lmp_ssp_capable(conn)) {
-				struct hci_cp_read_remote_ext_features cp;
-				cp.handle = ev->handle;
-				cp.page = 0x01;
-				hci_send_cmd(hdev,
-					HCI_OP_READ_REMOTE_EXT_FEATURES,
-							sizeof(cp), &cp);
-			} else if (!ev->status && conn->out &&
-					conn->sec_level == BT_SECURITY_HIGH) {
-				struct hci_cp_auth_requested cp;
-				cp.handle = ev->handle;
-				hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
+	if (!ev->status)
+		memcpy(conn->features, ev->features, 8);
+
+	if (conn->state != BT_CONFIG)
+		goto unlock;
+
+	if (!ev->status && lmp_ssp_capable(hdev) && lmp_ssp_capable(conn)) {
+		struct hci_cp_read_remote_ext_features cp;
+		cp.handle = ev->handle;
+		cp.page = 0x01;
+		hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
 							sizeof(cp), &cp);
-			} else {
-				conn->state = BT_CONNECTED;
-				hci_proto_connect_cfm(conn, ev->status);
-				hci_conn_put(conn);
-			}
-		}
+		goto unlock;
+	}
+
+	if (!ev->status) {
+		struct hci_cp_remote_name_req cp;
+		memset(&cp, 0, sizeof(cp));
+		bacpy(&cp.bdaddr, &conn->dst);
+		cp.pscan_rep_mode = 0x02;
+		hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
 	}
 
+	if (!hci_outgoing_auth_needed(hdev, conn)) {
+		conn->state = BT_CONNECTED;
+		hci_proto_connect_cfm(conn, ev->status);
+		hci_conn_put(conn);
+	}
+
+unlock:
 	hci_dev_unlock(hdev);
 }
 
@@ -1449,10 +1512,12 @@ static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *s
 			conn->sent -= count;
 
 			if (conn->type == ACL_LINK) {
-				if ((hdev->acl_cnt += count) > hdev->acl_pkts)
+				hdev->acl_cnt += count;
+				if (hdev->acl_cnt > hdev->acl_pkts)
 					hdev->acl_cnt = hdev->acl_pkts;
 			} else {
-				if ((hdev->sco_cnt += count) > hdev->sco_pkts)
+				hdev->sco_cnt += count;
+				if (hdev->sco_cnt > hdev->sco_pkts)
 					hdev->sco_cnt = hdev->sco_pkts;
 			}
 		}
@@ -1547,7 +1612,8 @@ static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *sk
 	if (conn && !ev->status) {
 		struct inquiry_entry *ie;
 
-		if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) {
+		ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
+		if (ie) {
 			ie->data.clock_offset = ev->clock_offset;
 			ie->timestamp = jiffies;
 		}
@@ -1581,7 +1647,8 @@ static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *
 
 	hci_dev_lock(hdev);
 
-	if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr))) {
+	ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
+	if (ie) {
 		ie->data.pscan_rep_mode = ev->pscan_rep_mode;
 		ie->timestamp = jiffies;
 	}
@@ -1646,32 +1713,37 @@ static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_b
 	hci_dev_lock(hdev);
 
 	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
-	if (conn) {
-		if (!ev->status && ev->page == 0x01) {
-			struct inquiry_entry *ie;
+	if (!conn)
+		goto unlock;
 
-			if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst)))
-				ie->data.ssp_mode = (ev->features[0] & 0x01);
+	if (!ev->status && ev->page == 0x01) {
+		struct inquiry_entry *ie;
 
-			conn->ssp_mode = (ev->features[0] & 0x01);
-		}
+		ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
+		if (ie)
+			ie->data.ssp_mode = (ev->features[0] & 0x01);
 
-		if (conn->state == BT_CONFIG) {
-			if (!ev->status && hdev->ssp_mode > 0 &&
-					conn->ssp_mode > 0 && conn->out &&
-					conn->sec_level != BT_SECURITY_SDP) {
-				struct hci_cp_auth_requested cp;
-				cp.handle = ev->handle;
-				hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
-							sizeof(cp), &cp);
-			} else {
-				conn->state = BT_CONNECTED;
-				hci_proto_connect_cfm(conn, ev->status);
-				hci_conn_put(conn);
-			}
-		}
+		conn->ssp_mode = (ev->features[0] & 0x01);
 	}
 
+	if (conn->state != BT_CONFIG)
+		goto unlock;
+
+	if (!ev->status) {
+		struct hci_cp_remote_name_req cp;
+		memset(&cp, 0, sizeof(cp));
+		bacpy(&cp.bdaddr, &conn->dst);
+		cp.pscan_rep_mode = 0x02;
+		hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
+	}
+
+	if (!hci_outgoing_auth_needed(hdev, conn)) {
+		conn->state = BT_CONNECTED;
+		hci_proto_connect_cfm(conn, ev->status);
+		hci_conn_put(conn);
+	}
+
+unlock:
 	hci_dev_unlock(hdev);
 }
 
@@ -1821,7 +1893,8 @@ static inline void hci_remote_host_features_evt(struct hci_dev *hdev, struct sk_
 
 	hci_dev_lock(hdev);
 
-	if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr)))
+	ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
+	if (ie)
 		ie->data.ssp_mode = (ev->features[0] & 0x01);
 
 	hci_dev_unlock(hdev);
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 83acd16..b3753ba 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -43,7 +43,7 @@
 #include <net/sock.h>
 
 #include <asm/system.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -125,7 +125,8 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
 				continue;
 		}
 
-		if (!(nskb = skb_clone(skb, GFP_ATOMIC)))
+		nskb = skb_clone(skb, GFP_ATOMIC);
+		if (!nskb)
 			continue;
 
 		/* Put type byte before the data */
@@ -370,7 +371,8 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le
 	}
 
 	if (haddr->hci_dev != HCI_DEV_NONE) {
-		if (!(hdev = hci_dev_get(haddr->hci_dev))) {
+		hdev = hci_dev_get(haddr->hci_dev);
+		if (!hdev) {
 			err = -ENODEV;
 			goto done;
 		}
@@ -457,7 +459,8 @@ static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (sk->sk_state == BT_CLOSED)
 		return 0;
 
-	if (!(skb = skb_recv_datagram(sk, flags, noblock, &err)))
+	skb = skb_recv_datagram(sk, flags, noblock, &err);
+	if (!skb)
 		return err;
 
 	msg->msg_namelen = 0;
@@ -499,7 +502,8 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 
 	lock_sock(sk);
 
-	if (!(hdev = hci_pi(sk)->hdev)) {
+	hdev = hci_pi(sk)->hdev;
+	if (!hdev) {
 		err = -EBADFD;
 		goto done;
 	}
@@ -509,7 +513,8 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 		goto done;
 	}
 
-	if (!(skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err)))
+	skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err);
+	if (!skb)
 		goto done;
 
 	if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index c0ee8b3..29544c2 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -107,6 +107,7 @@ static void __hidp_unlink_session(struct hidp_session *session)
 
 static void __hidp_copy_session(struct hidp_session *session, struct hidp_conninfo *ci)
 {
+	memset(ci, 0, sizeof(*ci));
 	bacpy(&ci->bdaddr, &session->bdaddr);
 
 	ci->flags = session->flags;
@@ -115,7 +116,6 @@ static void __hidp_copy_session(struct hidp_session *session, struct hidp_connin
 	ci->vendor  = 0x0000;
 	ci->product = 0x0000;
 	ci->version = 0x0000;
-	memset(ci->name, 0, 128);
 
 	if (session->input) {
 		ci->vendor  = session->input->id.vendor;
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index cd8f6ea..c12eccf 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -57,7 +57,7 @@
 
 #define VERSION "2.15"
 
-static int disable_ertm = 0;
+static int disable_ertm;
 
 static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN;
 static u8 l2cap_fixed_chan[8] = { 0x02, };
@@ -83,6 +83,18 @@ static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
 static int l2cap_ertm_data_rcv(struct sock *sk, struct sk_buff *skb);
 
 /* ---- L2CAP timers ---- */
+static void l2cap_sock_set_timer(struct sock *sk, long timeout)
+{
+	BT_DBG("sk %p state %d timeout %ld", sk, sk->sk_state, timeout);
+	sk_reset_timer(sk, &sk->sk_timer, jiffies + timeout);
+}
+
+static void l2cap_sock_clear_timer(struct sock *sk)
+{
+	BT_DBG("sock %p state %d", sk, sk->sk_state);
+	sk_stop_timer(sk, &sk->sk_timer);
+}
+
 static void l2cap_sock_timeout(unsigned long arg)
 {
 	struct sock *sk = (struct sock *) arg;
@@ -92,6 +104,14 @@ static void l2cap_sock_timeout(unsigned long arg)
 
 	bh_lock_sock(sk);
 
+	if (sock_owned_by_user(sk)) {
+		/* sk is owned by user. Try again later */
+		l2cap_sock_set_timer(sk, HZ / 5);
+		bh_unlock_sock(sk);
+		sock_put(sk);
+		return;
+	}
+
 	if (sk->sk_state == BT_CONNECTED || sk->sk_state == BT_CONFIG)
 		reason = ECONNREFUSED;
 	else if (sk->sk_state == BT_CONNECT &&
@@ -108,18 +128,6 @@ static void l2cap_sock_timeout(unsigned long arg)
 	sock_put(sk);
 }
 
-static void l2cap_sock_set_timer(struct sock *sk, long timeout)
-{
-	BT_DBG("sk %p state %d timeout %ld", sk, sk->sk_state, timeout);
-	sk_reset_timer(sk, &sk->sk_timer, jiffies + timeout);
-}
-
-static void l2cap_sock_clear_timer(struct sock *sk)
-{
-	BT_DBG("sock %p state %d", sk, sk->sk_state);
-	sk_stop_timer(sk, &sk->sk_timer);
-}
-
 /* ---- L2CAP channels ---- */
 static struct sock *__l2cap_get_chan_by_dcid(struct l2cap_chan_list *l, u16 cid)
 {
@@ -743,11 +751,13 @@ found:
 /* Find socket with psm and source bdaddr.
  * Returns closest match.
  */
-static struct sock *__l2cap_get_sock_by_psm(int state, __le16 psm, bdaddr_t *src)
+static struct sock *l2cap_get_sock_by_psm(int state, __le16 psm, bdaddr_t *src)
 {
 	struct sock *sk = NULL, *sk1 = NULL;
 	struct hlist_node *node;
 
+	read_lock(&l2cap_sk_list.lock);
+
 	sk_for_each(sk, node, &l2cap_sk_list.head) {
 		if (state && sk->sk_state != state)
 			continue;
@@ -762,20 +772,10 @@ static struct sock *__l2cap_get_sock_by_psm(int state, __le16 psm, bdaddr_t *src
 				sk1 = sk;
 		}
 	}
-	return node ? sk : sk1;
-}
 
-/* Find socket with given address (psm, src).
- * Returns locked socket */
-static inline struct sock *l2cap_get_sock_by_psm(int state, __le16 psm, bdaddr_t *src)
-{
-	struct sock *s;
-	read_lock(&l2cap_sk_list.lock);
-	s = __l2cap_get_sock_by_psm(state, psm, src);
-	if (s)
-		bh_lock_sock(s);
 	read_unlock(&l2cap_sk_list.lock);
-	return s;
+
+	return node ? sk : sk1;
 }
 
 static void l2cap_sock_destruct(struct sock *sk)
@@ -2926,6 +2926,8 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 		goto sendresp;
 	}
 
+	bh_lock_sock(parent);
+
 	/* Check if the ACL is secure enough (if not SDP) */
 	if (psm != cpu_to_le16(0x0001) &&
 				!hci_conn_check_link_mode(conn->hcon)) {
@@ -3078,6 +3080,14 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
 		break;
 
 	default:
+		/* don't delete l2cap channel if sk is owned by user */
+		if (sock_owned_by_user(sk)) {
+			sk->sk_state = BT_DISCONN;
+			l2cap_sock_clear_timer(sk);
+			l2cap_sock_set_timer(sk, HZ / 5);
+			break;
+		}
+
 		l2cap_chan_del(sk, ECONNREFUSED);
 		break;
 	}
@@ -3283,6 +3293,15 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_cmd
 
 	sk->sk_shutdown = SHUTDOWN_MASK;
 
+	/* don't delete l2cap channel if sk is owned by user */
+	if (sock_owned_by_user(sk)) {
+		sk->sk_state = BT_DISCONN;
+		l2cap_sock_clear_timer(sk);
+		l2cap_sock_set_timer(sk, HZ / 5);
+		bh_unlock_sock(sk);
+		return 0;
+	}
+
 	l2cap_chan_del(sk, ECONNRESET);
 	bh_unlock_sock(sk);
 
@@ -3305,6 +3324,15 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd
 	if (!sk)
 		return 0;
 
+	/* don't delete l2cap channel if sk is owned by user */
+	if (sock_owned_by_user(sk)) {
+		sk->sk_state = BT_DISCONN;
+		l2cap_sock_clear_timer(sk);
+		l2cap_sock_set_timer(sk, HZ / 5);
+		bh_unlock_sock(sk);
+		return 0;
+	}
+
 	l2cap_chan_del(sk, 0);
 	bh_unlock_sock(sk);
 
@@ -4134,11 +4162,10 @@ static inline void l2cap_data_channel_rrframe(struct sock *sk, u16 rx_control)
 			__mod_retrans_timer();
 
 		pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
-		if (pi->conn_state & L2CAP_CONN_SREJ_SENT) {
+		if (pi->conn_state & L2CAP_CONN_SREJ_SENT)
 			l2cap_send_ack(pi);
-		} else {
+		else
 			l2cap_ertm_send(sk);
-		}
 	}
 }
 
@@ -4430,6 +4457,8 @@ static inline int l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm, str
 	if (!sk)
 		goto drop;
 
+	bh_lock_sock(sk);
+
 	BT_DBG("sk %p, len %d", sk, skb->len);
 
 	if (sk->sk_state != BT_BOUND && sk->sk_state != BT_CONNECTED)
@@ -4841,8 +4870,10 @@ static int __init l2cap_init(void)
 		return err;
 
 	_busy_wq = create_singlethread_workqueue("l2cap");
-	if (!_busy_wq)
-		goto error;
+	if (!_busy_wq) {
+		proto_unregister(&l2cap_proto);
+		return -ENOMEM;
+	}
 
 	err = bt_sock_register(BTPROTO_L2CAP, &l2cap_sock_family_ops);
 	if (err < 0) {
@@ -4870,6 +4901,7 @@ static int __init l2cap_init(void)
 	return 0;
 
 error:
+	destroy_workqueue(_busy_wq);
 	proto_unregister(&l2cap_proto);
 	return err;
 }
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index fa642aa..c1e2bba 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -41,7 +41,7 @@
 #include <linux/slab.h>
 
 #include <net/sock.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -51,10 +51,10 @@
 
 #define VERSION "1.11"
 
-static int disable_cfc = 0;
+static int disable_cfc;
+static int l2cap_ertm;
 static int channel_mtu = -1;
 static unsigned int l2cap_mtu = RFCOMM_MAX_L2CAP_MTU;
-static int l2cap_ertm = 0;
 
 static struct task_struct *rfcomm_thread;
 
@@ -1901,7 +1901,7 @@ static inline void rfcomm_check_connection(struct rfcomm_session *s)
 
 	BT_DBG("%p state %ld", s, s->state);
 
-	switch(sk->sk_state) {
+	switch (sk->sk_state) {
 	case BT_CONNECTED:
 		s->state = BT_CONNECT;
 
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index aec505f..66cc1f0 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -45,7 +45,7 @@
 #include <net/sock.h>
 
 #include <asm/system.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -140,11 +140,13 @@ static struct sock *__rfcomm_get_sock_by_addr(u8 channel, bdaddr_t *src)
 /* Find socket with channel and source bdaddr.
  * Returns closest match.
  */
-static struct sock *__rfcomm_get_sock_by_channel(int state, u8 channel, bdaddr_t *src)
+static struct sock *rfcomm_get_sock_by_channel(int state, u8 channel, bdaddr_t *src)
 {
 	struct sock *sk = NULL, *sk1 = NULL;
 	struct hlist_node *node;
 
+	read_lock(&rfcomm_sk_list.lock);
+
 	sk_for_each(sk, node, &rfcomm_sk_list.head) {
 		if (state && sk->sk_state != state)
 			continue;
@@ -159,19 +161,10 @@ static struct sock *__rfcomm_get_sock_by_channel(int state, u8 channel, bdaddr_t
 				sk1 = sk;
 		}
 	}
-	return node ? sk : sk1;
-}
 
-/* Find socket with given address (channel, src).
- * Returns locked socket */
-static inline struct sock *rfcomm_get_sock_by_channel(int state, u8 channel, bdaddr_t *src)
-{
-	struct sock *s;
-	read_lock(&rfcomm_sk_list.lock);
-	s = __rfcomm_get_sock_by_channel(state, channel, src);
-	if (s) bh_lock_sock(s);
 	read_unlock(&rfcomm_sk_list.lock);
-	return s;
+
+	return node ? sk : sk1;
 }
 
 static void rfcomm_sock_destruct(struct sock *sk)
@@ -895,7 +888,8 @@ static int rfcomm_sock_shutdown(struct socket *sock, int how)
 
 	BT_DBG("sock %p, sk %p", sock, sk);
 
-	if (!sk) return 0;
+	if (!sk)
+		return 0;
 
 	lock_sock(sk);
 	if (!sk->sk_shutdown) {
@@ -945,6 +939,8 @@ int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel, struct rfcomm_dlc *
 	if (!parent)
 		return 0;
 
+	bh_lock_sock(parent);
+
 	/* Check for backlog size */
 	if (sk_acceptq_is_full(parent)) {
 		BT_DBG("backlog full %d", parent->sk_ack_backlog);
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index a9b81f5..2575c2d 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -58,9 +58,9 @@ struct rfcomm_dev {
 
 	bdaddr_t		src;
 	bdaddr_t		dst;
-	u8 			channel;
+	u8			channel;
 
-	uint 			modem_status;
+	uint			modem_status;
 
 	struct rfcomm_dlc	*dlc;
 	struct tty_struct	*tty;
@@ -69,7 +69,7 @@ struct rfcomm_dev {
 
 	struct device		*tty_dev;
 
-	atomic_t 		wmem_alloc;
+	atomic_t		wmem_alloc;
 
 	struct sk_buff_head	pending;
 };
@@ -431,7 +431,8 @@ static int rfcomm_release_dev(void __user *arg)
 
 	BT_DBG("dev_id %d flags 0x%x", req.dev_id, req.flags);
 
-	if (!(dev = rfcomm_dev_get(req.dev_id)))
+	dev = rfcomm_dev_get(req.dev_id);
+	if (!dev)
 		return -ENODEV;
 
 	if (dev->flags != NOCAP_FLAGS && !capable(CAP_NET_ADMIN)) {
@@ -470,7 +471,8 @@ static int rfcomm_get_dev_list(void __user *arg)
 
 	size = sizeof(*dl) + dev_num * sizeof(*di);
 
-	if (!(dl = kmalloc(size, GFP_KERNEL)))
+	dl = kmalloc(size, GFP_KERNEL);
+	if (!dl)
 		return -ENOMEM;
 
 	di = dl->dev_info;
@@ -513,7 +515,8 @@ static int rfcomm_get_dev_info(void __user *arg)
 	if (copy_from_user(&di, arg, sizeof(di)))
 		return -EFAULT;
 
-	if (!(dev = rfcomm_dev_get(di.id)))
+	dev = rfcomm_dev_get(di.id);
+	if (!dev)
 		return -ENODEV;
 
 	di.flags   = dev->flags;
@@ -561,7 +564,8 @@ static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb)
 		return;
 	}
 
-	if (!(tty = dev->tty) || !skb_queue_empty(&dev->pending)) {
+	tty = dev->tty;
+	if (!tty || !skb_queue_empty(&dev->pending)) {
 		skb_queue_tail(&dev->pending, skb);
 		return;
 	}
@@ -796,7 +800,8 @@ static int rfcomm_tty_write(struct tty_struct *tty, const unsigned char *buf, in
 
 		memcpy(skb_put(skb, size), buf + sent, size);
 
-		if ((err = rfcomm_dlc_send(dlc, skb)) < 0) {
+		err = rfcomm_dlc_send(dlc, skb);
+		if (err < 0) {
 			kfree_skb(skb);
 			break;
 		}
@@ -892,7 +897,7 @@ static void rfcomm_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
 
 	/* Parity on/off and when on, odd/even */
 	if (((old->c_cflag & PARENB) != (new->c_cflag & PARENB)) ||
-			((old->c_cflag & PARODD) != (new->c_cflag & PARODD)) ) {
+			((old->c_cflag & PARODD) != (new->c_cflag & PARODD))) {
 		changes |= RFCOMM_RPN_PM_PARITY;
 		BT_DBG("Parity change detected.");
 	}
@@ -937,11 +942,10 @@ static void rfcomm_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
 	/* POSIX does not support 1.5 stop bits and RFCOMM does not
 	 * support 2 stop bits. So a request for 2 stop bits gets
 	 * translated to 1.5 stop bits */
-	if (new->c_cflag & CSTOPB) {
+	if (new->c_cflag & CSTOPB)
 		stop_bits = RFCOMM_RPN_STOP_15;
-	} else {
+	else
 		stop_bits = RFCOMM_RPN_STOP_1;
-	}
 
 	/* Handle number of data bits [5-8] */
 	if ((old->c_cflag & CSIZE) != (new->c_cflag & CSIZE))
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index d0927d1..960c6d1 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -44,7 +44,7 @@
 #include <net/sock.h>
 
 #include <asm/system.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -52,7 +52,7 @@
 
 #define VERSION "0.6"
 
-static int disable_esco = 0;
+static int disable_esco;
 
 static const struct proto_ops sco_sock_ops;
 
@@ -138,16 +138,17 @@ static inline struct sock *sco_chan_get(struct sco_conn *conn)
 
 static int sco_conn_del(struct hci_conn *hcon, int err)
 {
-	struct sco_conn *conn;
+	struct sco_conn *conn = hcon->sco_data;
 	struct sock *sk;
 
-	if (!(conn = hcon->sco_data))
+	if (!conn)
 		return 0;
 
 	BT_DBG("hcon %p conn %p, err %d", hcon, conn, err);
 
 	/* Kill socket */
-	if ((sk = sco_chan_get(conn))) {
+	sk = sco_chan_get(conn);
+	if (sk) {
 		bh_lock_sock(sk);
 		sco_sock_clear_timer(sk);
 		sco_chan_del(sk, err);
@@ -185,7 +186,8 @@ static int sco_connect(struct sock *sk)
 
 	BT_DBG("%s -> %s", batostr(src), batostr(dst));
 
-	if (!(hdev = hci_get_route(dst, src)))
+	hdev = hci_get_route(dst, src);
+	if (!hdev)
 		return -EHOSTUNREACH;
 
 	hci_dev_lock_bh(hdev);
@@ -510,7 +512,8 @@ static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen
 	/* Set destination address and psm */
 	bacpy(&bt_sk(sk)->dst, &sa->sco_bdaddr);
 
-	if ((err = sco_connect(sk)))
+	err = sco_connect(sk);
+	if (err)
 		goto done;
 
 	err = bt_sock_wait_state(sk, BT_CONNECTED,
@@ -828,13 +831,14 @@ static void sco_chan_del(struct sock *sk, int err)
 
 static void sco_conn_ready(struct sco_conn *conn)
 {
-	struct sock *parent, *sk;
+	struct sock *parent;
+	struct sock *sk = conn->sk;
 
 	BT_DBG("conn %p", conn);
 
 	sco_conn_lock(conn);
 
-	if ((sk = conn->sk)) {
+	if (sk) {
 		sco_sock_clear_timer(sk);
 		bh_lock_sock(sk);
 		sk->sk_state = BT_CONNECTED;
@@ -882,7 +886,7 @@ static int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
 	int lm = 0;
 
 	if (type != SCO_LINK && type != ESCO_LINK)
-		return 0;
+		return -EINVAL;
 
 	BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
 
@@ -908,7 +912,7 @@ static int sco_connect_cfm(struct hci_conn *hcon, __u8 status)
 	BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
 
 	if (hcon->type != SCO_LINK && hcon->type != ESCO_LINK)
-		return 0;
+		return -EINVAL;
 
 	if (!status) {
 		struct sco_conn *conn;
@@ -927,7 +931,7 @@ static int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason)
 	BT_DBG("hcon %p reason %d", hcon, reason);
 
 	if (hcon->type != SCO_LINK && hcon->type != ESCO_LINK)
-		return 0;
+		return -EINVAL;
 
 	sco_conn_del(hcon, bt_err(reason));