From: Andre Guedes <andre.guedes@openbossa.org>
Date: Fri, 27 Jan 2012 22:42:03 +0000 (-0300)
Subject: Bluetooth: Remove unneeded locking
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e72acc13c770a82b4ce4a07e9716f29320eae0f8;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

Bluetooth: Remove unneeded locking

We don't need locking hdev in hci_conn_timeout() since it doesn't
access any hdev's shared resources, it basically queues HCI commands.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Reviewed-by: Ulisses Furquim <ulisses@profusion.mobi>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 7b38a0ba8765..67c94c4dfc3c 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -280,7 +280,6 @@ static void hci_conn_timeout(struct work_struct *work)
 {
 	struct hci_conn *conn = container_of(work, struct hci_conn,
 							disc_work.work);
-	struct hci_dev *hdev = conn->hdev;
 	__u8 reason;
 
 	BT_DBG("conn %p state %d", conn, conn->state);
@@ -288,8 +287,6 @@ static void hci_conn_timeout(struct work_struct *work)
 	if (atomic_read(&conn->refcnt))
 		return;
 
-	hci_dev_lock(hdev);
-
 	switch (conn->state) {
 	case BT_CONNECT:
 	case BT_CONNECT2:
@@ -309,8 +306,6 @@ static void hci_conn_timeout(struct work_struct *work)
 		conn->state = BT_CLOSED;
 		break;
 	}
-
-	hci_dev_unlock(hdev);
 }
 
 /* Enter sniff mode */