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authorJohan Hedberg <johan.hedberg@intel.com>2014-10-28 22:23:26 +0100
committerMarcel Holtmann <marcel@holtmann.org>2014-10-28 22:48:56 +0100
commit980ffc0a2cec2c37589cc97993e1ad17252f4f47 (patch)
tree228223f6d93d4bbfd41d36251f19a78475088997 /net
parent49c922bb1ec01ac3a98e5881f6c85ea7ef52d53f (diff)
Bluetooth: Fix LE connection timeout deadlock
The le_conn_timeout() may call hci_le_conn_failed() which in turn may call hci_conn_del(). Trying to use the _sync variant for cancelling the conn timeout from hci_conn_del() could therefore result in a deadlock. This patch converts hci_conn_del() to use the non-sync variant so the deadlock is not possible. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: stable@vger.kernel.org # 3.16.x
Diffstat (limited to 'net')
-rw-r--r--net/bluetooth/hci_conn.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 6a3225bf7bac..74b8e2421e96 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -518,7 +518,7 @@ int hci_conn_del(struct hci_conn *conn)
/* Unacked frames */
hdev->acl_cnt += conn->sent;
} else if (conn->type == LE_LINK) {
- cancel_delayed_work_sync(&conn->le_conn_timeout);
+ cancel_delayed_work(&conn->le_conn_timeout);
if (hdev->le_pkts)
hdev->le_cnt += conn->sent;