These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/kernel/net/bluetooth/hidp/core.c b/kernel/net/bluetooth/hidp/core.c
index 9070dfd6b..0bec4588c 100644
--- a/kernel/net/bluetooth/hidp/core.c
+++ b/kernel/net/bluetooth/hidp/core.c
@@ -401,6 +401,20 @@ static void hidp_idle_timeout(unsigned long arg)
 {
 	struct hidp_session *session = (struct hidp_session *) arg;
 
+	/* The HIDP user-space API only contains calls to add and remove
+	 * devices. There is no way to forward events of any kind. Therefore,
+	 * we have to forcefully disconnect a device on idle-timeouts. This is
+	 * unfortunate and weird API design, but it is spec-compliant and
+	 * required for backwards-compatibility. Hence, on idle-timeout, we
+	 * signal driver-detach events, so poll() will be woken up with an
+	 * error-condition on both sockets.
+	 */
+
+	session->intr_sock->sk->sk_err = EUNATCH;
+	session->ctrl_sock->sk->sk_err = EUNATCH;
+	wake_up_interruptible(sk_sleep(session->intr_sock->sk));
+	wake_up_interruptible(sk_sleep(session->ctrl_sock->sk));
+
 	hidp_session_terminate(session);
 }
 
@@ -915,6 +929,7 @@ static int hidp_session_new(struct hidp_session **out, const bdaddr_t *bdaddr,
 	session->conn = l2cap_conn_get(conn);
 	session->user.probe = hidp_session_probe;
 	session->user.remove = hidp_session_remove;
+	INIT_LIST_HEAD(&session->user.list);
 	session->ctrl_sock = ctrl_sock;
 	session->intr_sock = intr_sock;
 	skb_queue_head_init(&session->ctrl_transmit);