diff options
Diffstat (limited to 'drivers/input/evdev.c')
| -rw-r--r-- | drivers/input/evdev.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index ce953d895f5..fd325ec9f06 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -629,12 +629,10 @@ static int str_to_user(const char *str, unsigned int maxlen, void __user *p) return copy_to_user(p, str, len) ? -EFAULT : len; } -#define OLD_KEY_MAX 0x1ff static int handle_eviocgbit(struct input_dev *dev, unsigned int type, unsigned int size, void __user *p, int compat_mode) { - static unsigned long keymax_warn_time; unsigned long *bits; int len; @@ -652,24 +650,8 @@ static int handle_eviocgbit(struct input_dev *dev, default: return -EINVAL; } - /* - * Work around bugs in userspace programs that like to do - * EVIOCGBIT(EV_KEY, KEY_MAX) and not realize that 'len' - * should be in bytes, not in bits. - */ - if (type == EV_KEY && size == OLD_KEY_MAX) { - len = OLD_KEY_MAX; - if (printk_timed_ratelimit(&keymax_warn_time, 10 * 1000)) - pr_warning("(EVIOCGBIT): Suspicious buffer size %u, " - "limiting output to %zu bytes. See " - "http://userweb.kernel.org/~dtor/eviocgbit-bug.html\n", - OLD_KEY_MAX, - BITS_TO_LONGS(OLD_KEY_MAX) * sizeof(long)); - } - return bits_to_user(bits, len, size, p, compat_mode); } -#undef OLD_KEY_MAX static int evdev_handle_get_keycode(struct input_dev *dev, void __user *p) { |