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Input: touchscreens - handle errors when registering input devices 

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2006-11-05 22:40:03 -05:00
parent 2b03b60e6b
commit 52c1f5704d
5 changed files with 68 additions and 44 deletions
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30
drivers/input/touchscreen/corgi_ts.c
View File

@ -175,17 +175,19 @@ static int read_xydata(struct corgi_ts *corgi_ts)
static void new_data(struct corgi_ts *corgi_ts)
{
struct input_dev *dev = corgi_ts->input;
if (corgi_ts->power_mode != PWR_MODE_ACTIVE)
return;
if (!corgi_ts->tc.pressure && corgi_ts->pendown == 0)
return;
input_report_abs(corgi_ts->input, ABS_X, corgi_ts->tc.x);
input_report_abs(corgi_ts->input, ABS_Y, corgi_ts->tc.y);
input_report_abs(corgi_ts->input, ABS_PRESSURE, corgi_ts->tc.pressure);
input_report_key(corgi_ts->input, BTN_TOUCH, (corgi_ts->pendown != 0));
input_sync(corgi_ts->input);
input_report_abs(dev, ABS_X, corgi_ts->tc.x);
input_report_abs(dev, ABS_Y, corgi_ts->tc.y);
input_report_abs(dev, ABS_PRESSURE, corgi_ts->tc.pressure);
input_report_key(dev, BTN_TOUCH, corgi_ts->pendown);
input_sync(dev);
}
static void ts_interrupt_main(struct corgi_ts *corgi_ts, int isTimer)
@ -219,12 +221,14 @@ static void ts_interrupt_main(struct corgi_ts *corgi_ts, int isTimer)
static void corgi_ts_timer(unsigned long data)
{
struct corgi_ts *corgits_data = (struct corgi_ts *) data;
ts_interrupt_main(corgits_data, 1);
}
static irqreturn_t ts_interrupt(int irq, void *dev_id)
{
struct corgi_ts *corgits_data = dev_id;
ts_interrupt_main(corgits_data, 0);
return IRQ_HANDLED;
}
@ -272,7 +276,7 @@ static int __init corgits_probe(struct platform_device *pdev)
corgi_ts = kzalloc(sizeof(struct corgi_ts), GFP_KERNEL);
input_dev = input_allocate_device();
if (!corgi_ts || !input_dev)
goto fail;
goto fail1;
platform_set_drvdata(pdev, corgi_ts);
@ -281,7 +285,7 @@ static int __init corgits_probe(struct platform_device *pdev)
if (corgi_ts->irq_gpio < 0) {
err = -ENODEV;
goto fail;
goto fail1;
}
corgi_ts->input = input_dev;
@ -319,10 +323,12 @@ static int __init corgits_probe(struct platform_device *pdev)
if (request_irq(corgi_ts->irq_gpio, ts_interrupt, IRQF_DISABLED, "ts", corgi_ts)) {
err = -EBUSY;
goto fail;
goto fail1;
}
input_register_device(corgi_ts->input);
err = input_register_device(corgi_ts->input);
if (err)
goto fail2;
corgi_ts->power_mode = PWR_MODE_ACTIVE;
@ -331,17 +337,17 @@ static int __init corgits_probe(struct platform_device *pdev)
return 0;
fail: input_free_device(input_dev);
fail2: free_irq(corgi_ts->irq_gpio, corgi_ts);
fail1: input_free_device(input_dev);
kfree(corgi_ts);
return err;
}
static int corgits_remove(struct platform_device *pdev)
{
struct corgi_ts *corgi_ts = platform_get_drvdata(pdev);
free_irq(corgi_ts->irq_gpio, NULL);
free_irq(corgi_ts->irq_gpio, corgi_ts);
del_timer_sync(&corgi_ts->timer);
corgi_ts->machinfo->put_hsync();
input_unregister_device(corgi_ts->input);

14
drivers/input/touchscreen/gunze.c
View File

@ -123,7 +123,7 @@ static int gunze_connect(struct serio *serio, struct serio_driver *drv)
input_dev = input_allocate_device();
if (!gunze || !input_dev) {
err = -ENOMEM;
goto fail;
goto fail1;
}
gunze->serio = serio;
@ -146,13 +146,17 @@ static int gunze_connect(struct serio *serio, struct serio_driver *drv)
err = serio_open(serio, drv);
if (err)
goto fail;
goto fail2;
err = input_register_device(gunze->dev);
if (err)
goto fail3;
input_register_device(gunze->dev);
return 0;
fail: serio_set_drvdata(serio, NULL);
input_free_device(input_dev);
fail3: serio_close(serio);
fail2: serio_set_drvdata(serio, NULL);
fail1: input_free_device(input_dev);
kfree(gunze);
return err;
}

29
drivers/input/touchscreen/hp680_ts_input.c
View File

@ -76,38 +76,47 @@ static irqreturn_t hp680_ts_interrupt(int irq, void *dev)
static int __init hp680_ts_init(void)
{
int err;
hp680_ts_dev = input_allocate_device();
if (!hp680_ts_dev)
return -ENOMEM;
hp680_ts_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY);
hp680_ts_dev->absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
hp680_ts_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
hp680_ts_dev->absmin[ABS_X] = HP680_TS_ABS_X_MIN;
hp680_ts_dev->absmin[ABS_Y] = HP680_TS_ABS_Y_MIN;
hp680_ts_dev->absmax[ABS_X] = HP680_TS_ABS_X_MAX;
hp680_ts_dev->absmax[ABS_Y] = HP680_TS_ABS_Y_MAX;
input_set_abs_params(hp680_ts_dev, ABS_X,
HP680_TS_ABS_X_MIN, HP680_TS_ABS_X_MAX, 0, 0);
input_set_abs_params(hp680_ts_dev, ABS_Y,
HP680_TS_ABS_Y_MIN, HP680_TS_ABS_Y_MAX, 0, 0);
hp680_ts_dev->name = "HP Jornada touchscreen";
hp680_ts_dev->phys = "hp680_ts/input0";
input_register_device(hp680_ts_dev);
if (request_irq(HP680_TS_IRQ, hp680_ts_interrupt,
IRQF_DISABLED, MODNAME, 0) < 0) {
printk(KERN_ERR "hp680_touchscreen.c: Can't allocate irq %d\n",
HP680_TS_IRQ);
input_unregister_device(hp680_ts_dev);
return -EBUSY;
err = -EBUSY;
goto fail1;
}
err = input_register_device(hp680_ts_dev);
if (err)
goto fail2;
return 0;
fail2: free_irq(HP680_TS_IRQ, NULL);
cancel_delayed_work(&work);
flush_scheduled_work();
fail1: input_free_device(hp680_ts_dev);
return err;
}
static void __exit hp680_ts_exit(void)
{
free_irq(HP680_TS_IRQ, 0);
free_irq(HP680_TS_IRQ, NULL);
cancel_delayed_work(&work);
flush_scheduled_work();
input_unregister_device(hp680_ts_dev);

26
drivers/input/touchscreen/mk712.c
View File

@ -96,15 +96,13 @@ static irqreturn_t mk712_interrupt(int irq, void *dev_id)
goto end;
}
if (~status & MK712_STATUS_TOUCH)
{
if (~status & MK712_STATUS_TOUCH) {
debounce = 1;
input_report_key(mk712_dev, BTN_TOUCH, 0);
goto end;
}
if (debounce)
{
if (debounce) {
debounce = 0;
goto end;
}
@ -113,8 +111,7 @@ static irqreturn_t mk712_interrupt(int irq, void *dev_id)
input_report_abs(mk712_dev, ABS_X, last_x);
input_report_abs(mk712_dev, ABS_Y, last_y);
end:
end:
last_x = inw(mk712_io + MK712_X) & 0x0fff;
last_y = inw(mk712_io + MK712_Y) & 0x0fff;
input_sync(mk712_dev);
@ -169,13 +166,14 @@ static int __init mk712_init(void)
(inw(mk712_io + MK712_STATUS) & 0xf333)) {
printk(KERN_WARNING "mk712: device not present\n");
err = -ENODEV;
goto fail;
goto fail1;
}
if (!(mk712_dev = input_allocate_device())) {
mk712_dev = input_allocate_device();
if (!mk712_dev) {
printk(KERN_ERR "mk712: not enough memory\n");
err = -ENOMEM;
goto fail;
goto fail1;
}
mk712_dev->name = "ICS MicroClock MK712 TouchScreen";
@ -196,13 +194,17 @@ static int __init mk712_init(void)
if (request_irq(mk712_irq, mk712_interrupt, 0, "mk712", mk712_dev)) {
printk(KERN_WARNING "mk712: unable to get IRQ\n");
err = -EBUSY;
goto fail;
goto fail1;
}
input_register_device(mk712_dev);
err = input_register_device(mk712_dev);
if (err)
goto fail2;
return 0;
fail: input_free_device(mk712_dev);
fail2: free_irq(mk712_irq, mk712_dev);
fail1: input_free_device(mk712_dev);
release_region(mk712_io, 8);
return err;
}

13
drivers/input/touchscreen/mtouch.c
View File

@ -137,7 +137,7 @@ static int mtouch_connect(struct serio *serio, struct serio_driver *drv)
input_dev = input_allocate_device();
if (!mtouch || !input_dev) {
err = -ENOMEM;
goto fail;
goto fail1;
}
mtouch->serio = serio;
@ -160,14 +160,17 @@ static int mtouch_connect(struct serio *serio, struct serio_driver *drv)
err = serio_open(serio, drv);
if (err)
goto fail;
goto fail2;
input_register_device(mtouch->dev);
err = input_register_device(mtouch->dev);
if (err)
goto fail3;
return 0;
fail: serio_set_drvdata(serio, NULL);
input_free_device(input_dev);
fail3: serio_close(serio);
fail2: serio_set_drvdata(serio, NULL);
fail1: input_free_device(input_dev);
kfree(mtouch);
return err;
}