[PATCH] drivers/wireless: atmel: Convert timers to use timer_setup()

From: Kees Cook
Date: Tue Oct 24 2017 - 05:29:15 EST


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: Simon Kelley <simon@xxxxxxxxxxxxxxxxx>
Cc: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Cc: linux-wireless@xxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
drivers/net/wireless/atmel/atmel.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/atmel/atmel.c b/drivers/net/wireless/atmel/atmel.c
index e816d53c2c05..c9dd5e44c9c6 100644
--- a/drivers/net/wireless/atmel/atmel.c
+++ b/drivers/net/wireless/atmel/atmel.c
@@ -586,7 +586,7 @@ static int atmel_validate_channel(struct atmel_private *priv, int channel);
static void atmel_management_frame(struct atmel_private *priv,
struct ieee80211_hdr *header,
u16 frame_len, u8 rssi);
-static void atmel_management_timer(u_long a);
+static void atmel_management_timer(struct timer_list *t);
static void atmel_send_command(struct atmel_private *priv, int command,
void *cmd, int cmd_size);
static int atmel_send_command_wait(struct atmel_private *priv, int command,
@@ -1579,8 +1579,7 @@ struct net_device *init_atmel_card(unsigned short irq, unsigned long port,
priv->default_beacon_period = priv->beacon_period = 100;
priv->listen_interval = 1;

- setup_timer(&priv->management_timer, atmel_management_timer,
- (unsigned long)dev);
+ timer_setup(&priv->management_timer, atmel_management_timer, 0);
spin_lock_init(&priv->irqlock);
spin_lock_init(&priv->timerlock);

@@ -3434,10 +3433,9 @@ static void atmel_management_frame(struct atmel_private *priv,
}

/* run when timer expires */
-static void atmel_management_timer(u_long a)
+static void atmel_management_timer(struct timer_list *t)
{
- struct net_device *dev = (struct net_device *) a;
- struct atmel_private *priv = netdev_priv(dev);
+ struct atmel_private *priv = from_timer(priv, t, management_timer);
unsigned long flags;

/* Check if the card has been yanked. */
--
2.7.4


--
Kees Cook
Pixel Security