diff options
| -rw-r--r-- | drivers/input/evdev.c | 44 |
1 files changed, 24 insertions, 20 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 2d65411f6763..ef8c2ed792c3 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c | |||
| @@ -647,6 +647,28 @@ static int str_to_user(const char *str, unsigned int maxlen, void __user *p) | |||
| 647 | return copy_to_user(p, str, len) ? -EFAULT : len; | 647 | return copy_to_user(p, str, len) ? -EFAULT : len; |
| 648 | } | 648 | } |
| 649 | 649 | ||
| 650 | static int handle_eviocgbit(struct input_dev *dev, unsigned int cmd, void __user *p, int compat_mode) | ||
| 651 | { | ||
| 652 | unsigned long *bits; | ||
| 653 | int len; | ||
| 654 | |||
| 655 | switch (_IOC_NR(cmd) & EV_MAX) { | ||
| 656 | |||
| 657 | case 0: bits = dev->evbit; len = EV_MAX; break; | ||
| 658 | case EV_KEY: bits = dev->keybit; len = KEY_MAX; break; | ||
| 659 | case EV_REL: bits = dev->relbit; len = REL_MAX; break; | ||
| 660 | case EV_ABS: bits = dev->absbit; len = ABS_MAX; break; | ||
| 661 | case EV_MSC: bits = dev->mscbit; len = MSC_MAX; break; | ||
| 662 | case EV_LED: bits = dev->ledbit; len = LED_MAX; break; | ||
| 663 | case EV_SND: bits = dev->sndbit; len = SND_MAX; break; | ||
| 664 | case EV_FF: bits = dev->ffbit; len = FF_MAX; break; | ||
| 665 | case EV_SW: bits = dev->swbit; len = SW_MAX; break; | ||
| 666 | default: return -EINVAL; | ||
| 667 | } | ||
| 668 | return bits_to_user(bits, len, _IOC_SIZE(cmd), p, compat_mode); | ||
| 669 | } | ||
| 670 | |||
| 671 | |||
| 650 | static long evdev_do_ioctl(struct file *file, unsigned int cmd, | 672 | static long evdev_do_ioctl(struct file *file, unsigned int cmd, |
| 651 | void __user *p, int compat_mode) | 673 | void __user *p, int compat_mode) |
| 652 | { | 674 | { |
| @@ -733,26 +755,8 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd, | |||
| 733 | 755 | ||
| 734 | if (_IOC_DIR(cmd) == _IOC_READ) { | 756 | if (_IOC_DIR(cmd) == _IOC_READ) { |
| 735 | 757 | ||
| 736 | if ((_IOC_NR(cmd) & ~EV_MAX) == _IOC_NR(EVIOCGBIT(0, 0))) { | 758 | if ((_IOC_NR(cmd) & ~EV_MAX) == _IOC_NR(EVIOCGBIT(0, 0))) |
| 737 | 759 | return handle_eviocgbit(dev, cmd, p, compat_mode); | |
| 738 | unsigned long *bits; | ||
| 739 | int len; | ||
| 740 | |||
| 741 | switch (_IOC_NR(cmd) & EV_MAX) { | ||
| 742 | |||
| 743 | case 0: bits = dev->evbit; len = EV_MAX; break; | ||
| 744 | case EV_KEY: bits = dev->keybit; len = KEY_MAX; break; | ||
| 745 | case EV_REL: bits = dev->relbit; len = REL_MAX; break; | ||
| 746 | case EV_ABS: bits = dev->absbit; len = ABS_MAX; break; | ||
| 747 | case EV_MSC: bits = dev->mscbit; len = MSC_MAX; break; | ||
| 748 | case EV_LED: bits = dev->ledbit; len = LED_MAX; break; | ||
| 749 | case EV_SND: bits = dev->sndbit; len = SND_MAX; break; | ||
| 750 | case EV_FF: bits = dev->ffbit; len = FF_MAX; break; | ||
| 751 | case EV_SW: bits = dev->swbit; len = SW_MAX; break; | ||
| 752 | default: return -EINVAL; | ||
| 753 | } | ||
| 754 | return bits_to_user(bits, len, _IOC_SIZE(cmd), p, compat_mode); | ||
| 755 | } | ||
| 756 | 760 | ||
| 757 | if (_IOC_NR(cmd) == _IOC_NR(EVIOCGKEY(0))) | 761 | if (_IOC_NR(cmd) == _IOC_NR(EVIOCGKEY(0))) |
| 758 | return bits_to_user(dev->key, KEY_MAX, _IOC_SIZE(cmd), | 762 | return bits_to_user(dev->key, KEY_MAX, _IOC_SIZE(cmd), |
