From 67d0dfb5ec781e9fe030e4e61359ee6eed66ff92 Mon Sep 17 00:00:00 2001 From: "Gustavo F. Padovan" Date: Fri, 9 Dec 2011 04:41:30 -0200 Subject: Bluetooth: move hci_task_lock to mutex Now we can sleep in any path inside Bluetooth core, so mutex can make sense here. Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- net/bluetooth/hci_core.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'net/bluetooth') diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 6f5bb3cbf6f..36763aa59ea 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -60,7 +60,7 @@ static void hci_rx_work(struct work_struct *work); static void hci_cmd_task(unsigned long arg); static void hci_tx_task(unsigned long arg); -static DEFINE_RWLOCK(hci_task_lock); +static DEFINE_MUTEX(hci_task_lock); /* HCI device list */ LIST_HEAD(hci_dev_list); @@ -1808,14 +1808,14 @@ int hci_register_proto(struct hci_proto *hp) if (hp->id >= HCI_MAX_PROTO) return -EINVAL; - write_lock_bh(&hci_task_lock); + mutex_lock(&hci_task_lock); if (!hci_proto[hp->id]) hci_proto[hp->id] = hp; else err = -EEXIST; - write_unlock_bh(&hci_task_lock); + mutex_unlock(&hci_task_lock); return err; } @@ -1830,14 +1830,14 @@ int hci_unregister_proto(struct hci_proto *hp) if (hp->id >= HCI_MAX_PROTO) return -EINVAL; - write_lock_bh(&hci_task_lock); + mutex_lock(&hci_task_lock); if (hci_proto[hp->id]) hci_proto[hp->id] = NULL; else err = -ENOENT; - write_unlock_bh(&hci_task_lock); + mutex_unlock(&hci_task_lock); return err; } @@ -2386,7 +2386,7 @@ static void hci_tx_task(unsigned long arg) struct hci_dev *hdev = (struct hci_dev *) arg; struct sk_buff *skb; - read_lock(&hci_task_lock); + mutex_lock(&hci_task_lock); BT_DBG("%s acl %d sco %d le %d", hdev->name, hdev->acl_cnt, hdev->sco_cnt, hdev->le_cnt); @@ -2405,7 +2405,7 @@ static void hci_tx_task(unsigned long arg) while ((skb = skb_dequeue(&hdev->raw_q))) hci_send_frame(skb); - read_unlock(&hci_task_lock); + mutex_unlock(&hci_task_lock); } /* ----- HCI RX task (incoming data processing) ----- */ @@ -2493,7 +2493,7 @@ static void hci_rx_work(struct work_struct *work) BT_DBG("%s", hdev->name); - read_lock(&hci_task_lock); + mutex_lock(&hci_task_lock); while ((skb = skb_dequeue(&hdev->rx_q))) { if (atomic_read(&hdev->promisc)) { @@ -2539,7 +2539,7 @@ static void hci_rx_work(struct work_struct *work) } } - read_unlock(&hci_task_lock); + mutex_unlock(&hci_task_lock); } static void hci_cmd_task(unsigned long arg) -- cgit v1.2.3