user/sven/linux.git/drivers/input/input.c, branch v4.4.265

Input: add safety guards to input_set_keycode()

2020-01-14T19:03:03Z

commit cb222aed03d798fc074be55e59d9a112338ee784 upstream. If we happen to have a garbage in input device's keycode table with values too big we'll end up doing clear_bit() with offset way outside of our bitmaps, damaging other objects within an input device or even outside of it. Let's add sanity checks to the returned old keycodes. Reported-by: syzbot+c769968809f9359b07aa@syzkaller.appspotmail.com Reported-by: syzbot+76f3a30e88d256644c78@syzkaller.appspotmail.com Link: https://lore.kernel.org/r/20191207212757.GA245964@dtor-ws Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman

Input: improve autorepeat initialization

2015-10-14T06:30:31Z

Add new function input_enable_softrepeat() that allows drivers to initialize their own values for input_dev->rep[REP_DELAY] and input_dev->rep[REP_PERIOD], but also use the software autorepeat functionality from input.c. For example, a HID driver could do: static void xyz_input_configured(struct hid_device *hid, struct hid_input *hidinput) { input_enable_softrepeat(hidinput->input, 400, 100); } static struct hid_driver xyz_driver = { .input_configured = xyz_input_configured, } Signed-off-by: Petri Gynther Signed-off-by: Dmitry Torokhov

Input: do not emit unneeded EV_SYN when suspending

2015-08-07T21:55:38Z

Do not emit EV_SYN/SYN_REPORT on suspend if there were no keys that are still pressed as we are suspending the device (and in all other cases when input core is forcibly releasing keys via input_dev_release_keys() call). Reviewed-by: Benson Leung Signed-off-by: Dmitry Torokhov

Input: use for_each_set_bit() where appropriate

2015-06-25T21:44:36Z

Instead of iterating over all bits in a bitmap and test them individually let's siwtch to for_each_set_bit() which is more compact and is also faster. Also use bitmap_weight() when counting number of set bits. This also fixes INPUT_DO_TOGGLE() implementation as it should have used *_CNT as the upper boundary, not *_MAX. Signed-off-by: Anshul Garg Signed-off-by: Dmitry Torokhov

Input: fix typo in comment to input_handler_for_each_handle()

2015-05-20T21:45:41Z

Signed-off-by: Shailendra Verma Signed-off-by: Dmitry Torokhov

Input: do not try to filter out events if handler is not a filter

2015-01-08T21:53:34Z

If given input handler is not a filter there is no point is iterating list of events in a packet to see if some of them need to be filtered out. Signed-off-by: Anshul Garg Signed-off-by: Dmitry Torokhov

Input: small tweak to autorepeat handling

2015-01-08T21:53:30Z

If a device does not support autorepeat or does not emit any key events we should not be scanning all events in a packet to decide if we should start or stop autorepeat function. Signed-off-by: Anshul Garg Signed-off-by: Dmitry Torokhov

Input: optimize events_per_packet count calculation

2014-12-16T05:45:55Z

This patch avoids unnecessary operations while estimating events per packet for an input device when event type is not set. Signed-off-by: Anshul Garg Signed-off-by: Dmitry Torokhov

Input: initialize input_no to -1 to avoid subtraction

2014-12-03T05:34:49Z

Let's initializes input_no to -1 in order to avoid extra subtraction operation performed every time we allocate an input device. Signed-off-by: Aniroop Mathur Signed-off-by: Dmitry Torokhov

Input: avoid negative input device numbers

2014-10-09T22:27:24Z

Fix the format string for input device name generation to avoid negative device numbers when the id exceeds the maximum signed integer value. Signed-off-by: Richard Leitner Signed-off-by: Dmitry Torokhov