From: Hans de Goede <[email protected]> This patch has been added to the 3.12 stable tree. If you have any objections, please let us know.
=============== commit 271329b3c798b2102120f5df829071c211ef00ed upstream. Adjust Elantech signature validation to account fo rnewer models of touchpads. Reported-and-tested-by: Màrius Monton <[email protected]> Signed-off-by: Hans de Goede <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- drivers/input/mouse/elantech.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 233516aff595..0b75b5764f31 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1253,6 +1253,13 @@ static bool elantech_is_signature_valid(const unsigned char *param) if (param[1] == 0) return true; + /* + * Some models have a revision higher then 20. Meaning param[2] may + * be 10 or 20, skip the rates check for these. + */ + if (param[0] == 0x46 && (param[1] & 0xef) == 0x0f && param[2] < 40) + return true; + for (i = 0; i < ARRAY_SIZE(rates); i++) if (param[2] == rates[i]) return false; -- 2.1.1 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
