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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-20 10:17:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-20 10:17:02 -0700
commit93db6294958f62643a917e44d1abc85440e600cf (patch)
tree33de2c41b0f70d209d64487d1a2bba6d673015ef /drivers/input/evdev.c
parent43813f399c72aa22e01a680559c1cb5274bf2140 (diff)
parenteef3e4cab72eaf5345e3c73b2975c194a714f6cd (diff)
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (35 commits) Input: add driver for Synaptics I2C touchpad Input: synaptics - add support for reporting x/y resolution Input: ALPS - handle touchpoints buttons correctly Input: gpio-keys - change timer to workqueue Input: ads7846 - pin change interrupt support Input: add support for touchscreen on W90P910 ARM platform Input: appletouch - improve finger detection Input: wacom - clear Intuos4 wheel data when finger leaves proximity Input: ucb1400 - move static function from header into core Input: add driver for EETI touchpanels Input: ads7846 - more detailed model name in sysfs Input: ads7846 - support swapping x and y axes Input: ati_remote2 - use non-atomic bitops Input: introduce lm8323 keypad driver Input: psmouse - ESD workaround fix for OLPC XO touchpad Input: tsc2007 - make sure platform provides get_pendown_state() Input: uinput - flush all pending ff effects before destroying device Input: simplify name handling for certain input handles Input: serio - do not use deprecated dev.power.power_state Input: wacom - add support for Intuos4 tablets ...
Diffstat (limited to 'drivers/input/evdev.c')
-rw-r--r--drivers/input/evdev.c21
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 7a7a026ba71..114efd8dc8f 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -25,7 +25,6 @@ struct evdev {
int exist;
int open;
int minor;
- char name[16];
struct input_handle handle;
wait_queue_head_t wait;
struct evdev_client *grab;
@@ -609,7 +608,8 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
p, compat_mode);
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0)))
- return str_to_user(dev->name, _IOC_SIZE(cmd), p);
+ return str_to_user(dev_name(&evdev->dev),
+ _IOC_SIZE(cmd), p);
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGPHYS(0)))
return str_to_user(dev->phys, _IOC_SIZE(cmd), p);
@@ -626,8 +626,11 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
abs.maximum = dev->absmax[t];
abs.fuzz = dev->absfuzz[t];
abs.flat = dev->absflat[t];
+ abs.resolution = dev->absres[t];
- if (copy_to_user(p, &abs, sizeof(struct input_absinfo)))
+ if (copy_to_user(p, &abs, min_t(size_t,
+ _IOC_SIZE(cmd),
+ sizeof(struct input_absinfo))))
return -EFAULT;
return 0;
@@ -654,8 +657,9 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
t = _IOC_NR(cmd) & ABS_MAX;
- if (copy_from_user(&abs, p,
- sizeof(struct input_absinfo)))
+ if (copy_from_user(&abs, p, min_t(size_t,
+ _IOC_SIZE(cmd),
+ sizeof(struct input_absinfo))))
return -EFAULT;
/*
@@ -670,6 +674,8 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
dev->absmax[t] = abs.maximum;
dev->absfuzz[t] = abs.fuzz;
dev->absflat[t] = abs.flat;
+ dev->absres[t] = _IOC_SIZE(cmd) < sizeof(struct input_absinfo) ?
+ 0 : abs.resolution;
spin_unlock_irq(&dev->event_lock);
@@ -807,16 +813,15 @@ static int evdev_connect(struct input_handler *handler, struct input_dev *dev,
mutex_init(&evdev->mutex);
init_waitqueue_head(&evdev->wait);
- snprintf(evdev->name, sizeof(evdev->name), "event%d", minor);
+ dev_set_name(&evdev->dev, "event%d", minor);
evdev->exist = 1;
evdev->minor = minor;
evdev->handle.dev = input_get_device(dev);
- evdev->handle.name = evdev->name;
+ evdev->handle.name = dev_name(&evdev->dev);
evdev->handle.handler = handler;
evdev->handle.private = evdev;
- dev_set_name(&evdev->dev, evdev->name);
evdev->dev.devt = MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + minor);
evdev->dev.class = &input_class;
evdev->dev.parent = &dev->dev;