From: "Gustavo F. Padovan" <padovan@xxxxxxxxxxxxxx>
Now we can sleep in any path inside Bluetooth core, so mutex can make
sense here.
Signed-off-by: Gustavo F. Padovan <padovan@xxxxxxxxxxxxxx>
---
net/bluetooth/hci_core.c | 18 +++++++++---------
1 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 1605fe7..1f0198b 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);
@@ -1809,14 +1809,14 @@ 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;
}
@@ -1831,14 +1831,14 @@ 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;
}
@@ -2387,7 +2387,7 @@ 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);
@@ -2406,7 +2406,7 @@ 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) ----- */
@@ -2494,7 +2494,7 @@ 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)) {
@@ -2540,7 +2540,7 @@ 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)
--
1.7.6.4
--
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