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: Mats Randgaard <matra...@cisco.com>
Cc: Mauro Carvalho Chehab <mche...@kernel.org>
Cc: linux-media@vger.kernel.org
Signed-off-by: Kees Cook <keesc...@chromium.org>
---
 drivers/media/i2c/tc358743.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index a9355032076f..359f63d7dfca 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -1481,9 +1481,9 @@ static irqreturn_t tc358743_irq_handler(int irq, void 
*dev_id)
        return handled ? IRQ_HANDLED : IRQ_NONE;
 }
 
-static void tc358743_irq_poll_timer(unsigned long arg)
+static void tc358743_irq_poll_timer(struct timer_list *t)
 {
-       struct tc358743_state *state = (struct tc358743_state *)arg;
+       struct tc358743_state *state = from_timer(state, t, timer);
        unsigned int msecs;
 
        schedule_work(&state->work_i2c_poll);
@@ -2147,8 +2147,7 @@ static int tc358743_probe(struct i2c_client *client,
        } else {
                INIT_WORK(&state->work_i2c_poll,
                          tc358743_work_i2c_poll);
-               setup_timer(&state->timer, tc358743_irq_poll_timer,
-                           (unsigned long)state);
+               timer_setup(&state->timer, tc358743_irq_poll_timer, 0);
                state->timer.expires = jiffies +
                                       msecs_to_jiffies(POLL_INTERVAL_MS);
                add_timer(&state->timer);
-- 
2.7.4


-- 
Kees Cook
Pixel Security

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