[PATCH] Input: touchscreen: Convert timers to use timer_setup()
From: Kees Cook
Date: Tue Oct 24 2017 - 10:19:10 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: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Cc: Ferruh Yigit <fery@xxxxxxxxxxx>
Cc: Wan ZongShun <mcuos.com@xxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: linux-input@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
drivers/input/touchscreen/ad7877.c | 6 +++---
drivers/input/touchscreen/ad7879.c | 6 +++---
drivers/input/touchscreen/atmel-wm97xx.c | 10 ++++++----
drivers/input/touchscreen/cyttsp4_core.c | 7 +++----
drivers/input/touchscreen/tsc200x-core.c | 6 +++---
drivers/input/touchscreen/w90p910_ts.c | 7 +++----
6 files changed, 21 insertions(+), 21 deletions(-)
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index 9c250ae780d9..0381c7809d1b 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -385,9 +385,9 @@ static inline void ad7877_ts_event_release(struct ad7877 *ts)
input_sync(input_dev);
}
-static void ad7877_timer(unsigned long handle)
+static void ad7877_timer(struct timer_list *t)
{
- struct ad7877 *ts = (void *)handle;
+ struct ad7877 *ts = from_timer(ts, t, timer);
unsigned long flags;
spin_lock_irqsave(&ts->lock, flags);
@@ -718,7 +718,7 @@ static int ad7877_probe(struct spi_device *spi)
ts->spi = spi;
ts->input = input_dev;
- setup_timer(&ts->timer, ad7877_timer, (unsigned long) ts);
+ timer_setup(&ts->timer, ad7877_timer, 0);
mutex_init(&ts->mutex);
spin_lock_init(&ts->lock);
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index 7d74a0ae2c94..6bad23ee47a1 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -237,9 +237,9 @@ static void ad7879_ts_event_release(struct ad7879 *ts)
input_sync(input_dev);
}
-static void ad7879_timer(unsigned long handle)
+static void ad7879_timer(struct timer_list *t)
{
- struct ad7879 *ts = (void *)handle;
+ struct ad7879 *ts = from_timer(ts, t, timer);
ad7879_ts_event_release(ts);
}
@@ -570,7 +570,7 @@ int ad7879_probe(struct device *dev, struct regmap *regmap,
ts->irq = irq;
ts->regmap = regmap;
- setup_timer(&ts->timer, ad7879_timer, (unsigned long) ts);
+ timer_setup(&ts->timer, ad7879_timer, 0);
snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(dev));
input_dev->name = "AD7879 Touchscreen";
diff --git a/drivers/input/touchscreen/atmel-wm97xx.c b/drivers/input/touchscreen/atmel-wm97xx.c
index 8cf0b2be2df4..9140a43cfe20 100644
--- a/drivers/input/touchscreen/atmel-wm97xx.c
+++ b/drivers/input/touchscreen/atmel-wm97xx.c
@@ -208,9 +208,12 @@ static void atmel_wm97xx_acc_pen_up(struct wm97xx *wm)
}
}
-static void atmel_wm97xx_pen_timer(unsigned long data)
+static void atmel_wm97xx_pen_timer(struct timer_list *t)
{
- atmel_wm97xx_acc_pen_up((struct wm97xx *)data);
+ struct atmel_wm97xx *atmel_wm97xx = from_timer(atmel_wm97xx, t,
+ pen_timer);
+
+ atmel_wm97xx_acc_pen_up(atmel_wm97xx->wm);
}
static int atmel_wm97xx_acc_startup(struct wm97xx *wm)
@@ -348,8 +351,7 @@ static int __init atmel_wm97xx_probe(struct platform_device *pdev)
atmel_wm97xx->gpio_pen = atmel_gpio_line;
atmel_wm97xx->gpio_irq = gpio_to_irq(atmel_wm97xx->gpio_pen);
- setup_timer(&atmel_wm97xx->pen_timer, atmel_wm97xx_pen_timer,
- (unsigned long)wm);
+ timer_setup(&atmel_wm97xx->pen_timer, atmel_wm97xx_pen_timer, 0);
ret = request_irq(atmel_wm97xx->ac97c_irq,
atmel_wm97xx_channel_b_interrupt,
diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c
index beaf61ce775b..e7710397e0ad 100644
--- a/drivers/input/touchscreen/cyttsp4_core.c
+++ b/drivers/input/touchscreen/cyttsp4_core.c
@@ -1237,9 +1237,9 @@ static void cyttsp4_stop_wd_timer(struct cyttsp4 *cd)
del_timer_sync(&cd->watchdog_timer);
}
-static void cyttsp4_watchdog_timer(unsigned long handle)
+static void cyttsp4_watchdog_timer(struct timer_list *t)
{
- struct cyttsp4 *cd = (struct cyttsp4 *)handle;
+ struct cyttsp4 *cd = from_timer(cd, t, watchdog_timer);
dev_vdbg(cd->dev, "%s: Watchdog timer triggered\n", __func__);
@@ -2074,8 +2074,7 @@ struct cyttsp4 *cyttsp4_probe(const struct cyttsp4_bus_ops *ops,
}
/* Setup watchdog timer */
- setup_timer(&cd->watchdog_timer, cyttsp4_watchdog_timer,
- (unsigned long)cd);
+ timer_setup(&cd->watchdog_timer, cyttsp4_watchdog_timer, 0);
/*
* call startup directly to ensure that the device
diff --git a/drivers/input/touchscreen/tsc200x-core.c b/drivers/input/touchscreen/tsc200x-core.c
index 88ea5e1b72ae..542db26d7fd0 100644
--- a/drivers/input/touchscreen/tsc200x-core.c
+++ b/drivers/input/touchscreen/tsc200x-core.c
@@ -202,9 +202,9 @@ static irqreturn_t tsc200x_irq_thread(int irq, void *_ts)
return IRQ_HANDLED;
}
-static void tsc200x_penup_timer(unsigned long data)
+static void tsc200x_penup_timer(struct timer_list *t)
{
- struct tsc200x *ts = (struct tsc200x *)data;
+ struct tsc200x *ts = from_timer(ts, t, penup_timer);
unsigned long flags;
spin_lock_irqsave(&ts->lock, flags);
@@ -506,7 +506,7 @@ int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
mutex_init(&ts->mutex);
spin_lock_init(&ts->lock);
- setup_timer(&ts->penup_timer, tsc200x_penup_timer, (unsigned long)ts);
+ timer_setup(&ts->penup_timer, tsc200x_penup_timer, 0);
INIT_DELAYED_WORK(&ts->esd_work, tsc200x_esd_work);
diff --git a/drivers/input/touchscreen/w90p910_ts.c b/drivers/input/touchscreen/w90p910_ts.c
index da6004e97753..638c1d78ca3a 100644
--- a/drivers/input/touchscreen/w90p910_ts.c
+++ b/drivers/input/touchscreen/w90p910_ts.c
@@ -146,9 +146,9 @@ static irqreturn_t w90p910_ts_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static void w90p910_check_pen_up(unsigned long data)
+static void w90p910_check_pen_up(struct timer_list *t)
{
- struct w90p910_ts *w90p910_ts = (struct w90p910_ts *) data;
+ struct w90p910_ts *w90p910_ts = from_timer(w90p910_ts, t, timer);
unsigned long flags;
spin_lock_irqsave(&w90p910_ts->lock, flags);
@@ -232,8 +232,7 @@ static int w90x900ts_probe(struct platform_device *pdev)
w90p910_ts->input = input_dev;
w90p910_ts->state = TS_IDLE;
spin_lock_init(&w90p910_ts->lock);
- setup_timer(&w90p910_ts->timer, w90p910_check_pen_up,
- (unsigned long)w90p910_ts);
+ timer_setup(&w90p910_ts->timer, w90p910_check_pen_up, 0);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
--
2.7.4
--
Kees Cook
Pixel Security