In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: "David S. Miller" <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: [email protected]
Signed-off-by: Kees Cook <[email protected]>
---
 drivers/tty/vcc.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/tty/vcc.c b/drivers/tty/vcc.c
index 954b190526e7..58b454c34560 100644
--- a/drivers/tty/vcc.c
+++ b/drivers/tty/vcc.c
@@ -361,17 +361,13 @@ static int vcc_ldc_read(struct vcc_port *port)
        return rv;
 }
 
-static void vcc_rx_timer(unsigned long index)
+static void vcc_rx_timer(struct timer_list *t)
 {
+       struct vcc_port *port = from_timer(port, t, rx_timer);
        struct vio_driver_state *vio;
-       struct vcc_port *port;
        unsigned long flags;
        int rv;
 
-       port = vcc_get_ne(index);
-       if (!port)
-               return;
-
        spin_lock_irqsave(&port->lock, flags);
        port->rx_timer.expires = 0;
 
@@ -391,18 +387,14 @@ static void vcc_rx_timer(unsigned long index)
        vcc_put(port, false);
 }
 
-static void vcc_tx_timer(unsigned long index)
+static void vcc_tx_timer(struct timer_list *t)
 {
-       struct vcc_port *port;
+       struct vcc_port *port = from_timer(port, t, tx_timer);
        struct vio_vcc *pkt;
        unsigned long flags;
        int tosend = 0;
        int rv;
 
-       port = vcc_get_ne(index);
-       if (!port)
-               return;
-
        spin_lock_irqsave(&port->lock, flags);
        port->tx_timer.expires = 0;
 
@@ -645,8 +637,8 @@ static int vcc_probe(struct vio_dev *vdev, const struct 
vio_device_id *id)
        if (rv)
                goto free_domain;
 
-       setup_timer(&port->rx_timer, vcc_rx_timer, port->index);
-       setup_timer(&port->tx_timer, vcc_tx_timer, port->index);
+       timer_setup(&port->rx_timer, vcc_rx_timer, 0);
+       timer_setup(&port->tx_timer, vcc_tx_timer, 0);
 
        dev_set_drvdata(&vdev->dev, port);
 
-- 
2.7.4


-- 
Kees Cook
Pixel Security

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