[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <CAJOu_2_Uf4PrH+eG4aY6AtUrKeJiYh1Pk33LxUYPi6cKReLhTw@mail.gmail.com>
Date: Tue, 19 Jul 2016 18:16:58 -0700
From: Nitin Chaudhary <nitinchaudhary1289@...il.com>
To: Andrew Duggan <aduggan@...aptics.com>
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Jiri Kosina <jikos@...nel.org>,
Benjamin Tissoires <benjamin.tissoires@...hat.com>,
Vincent Huang <vincent.huang@...synaptics.com>,
Nick Dyer <nick@...anahar.org>,
Chris Healy <cphealy@...il.com>, stable@...r.kernel.org
Subject: Re: [PATCH] Input: synaptics-rmi4: Fix maximum size check for F12
control register 8
Tested on i.MX6Q Board with Synaptics 7813 Touch Controller, works fine.
Tested by: Nitin Chaudhary <nitinchaudhary1289@...il.com>
On Tue, Jul 19, 2016 at 4:43 PM, Andrew Duggan <aduggan@...aptics.com> wrote:
> According to the RMI4 spec the maximum size of F12 control register 8 is
> 15 bytes. The current code incorrectly reports an error if control 8 is
> greater then 14. Making sensors with a control register 8 with 15 bytes
> unusable.
>
> Signed-off-by: Andrew Duggan <aduggan@...aptics.com>
> Reported-by: Chris Healy <cphealy@...il.com>
> Cc: stable@...r.kernel.org
> ---
> drivers/input/rmi4/rmi_f12.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/input/rmi4/rmi_f12.c b/drivers/input/rmi4/rmi_f12.c
> index c30fd86..9b0d9f7 100644
> --- a/drivers/input/rmi4/rmi_f12.c
> +++ b/drivers/input/rmi4/rmi_f12.c
> @@ -68,7 +68,7 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
> struct rmi_device *rmi_dev = fn->rmi_dev;
> int ret;
> int offset;
> - u8 buf[14];
> + u8 buf[15];
> int pitch_x = 0;
> int pitch_y = 0;
> int clip_x_low = 0;
> @@ -88,8 +88,9 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
>
> offset = rmi_register_desc_calc_reg_offset(&f12->control_reg_desc, 8);
>
> - if (item->reg_size > 14) {
> - dev_err(&fn->dev, "F12 control8 should be 14 bytes, not: %ld\n",
> + if (item->reg_size > 15) {
> + dev_err(&fn->dev,
> + "F12 control8 should be a maximum of 15 bytes, not: %ld\n",
> item->reg_size);
> return -ENODEV;
> }
> --
> 2.7.4
>
On Tue, Jul 19, 2016 at 4:43 PM, Andrew Duggan <aduggan@...aptics.com> wrote:
> According to the RMI4 spec the maximum size of F12 control register 8 is
> 15 bytes. The current code incorrectly reports an error if control 8 is
> greater then 14. Making sensors with a control register 8 with 15 bytes
> unusable.
>
> Signed-off-by: Andrew Duggan <aduggan@...aptics.com>
> Reported-by: Chris Healy <cphealy@...il.com>
> Cc: stable@...r.kernel.org
> ---
> drivers/input/rmi4/rmi_f12.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/input/rmi4/rmi_f12.c b/drivers/input/rmi4/rmi_f12.c
> index c30fd86..9b0d9f7 100644
> --- a/drivers/input/rmi4/rmi_f12.c
> +++ b/drivers/input/rmi4/rmi_f12.c
> @@ -68,7 +68,7 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
> struct rmi_device *rmi_dev = fn->rmi_dev;
> int ret;
> int offset;
> - u8 buf[14];
> + u8 buf[15];
> int pitch_x = 0;
> int pitch_y = 0;
> int clip_x_low = 0;
> @@ -88,8 +88,9 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
>
> offset = rmi_register_desc_calc_reg_offset(&f12->control_reg_desc, 8);
>
> - if (item->reg_size > 14) {
> - dev_err(&fn->dev, "F12 control8 should be 14 bytes, not: %ld\n",
> + if (item->reg_size > 15) {
> + dev_err(&fn->dev,
> + "F12 control8 should be a maximum of 15 bytes, not: %ld\n",
> item->reg_size);
> return -ENODEV;
> }
> --
> 2.7.4
>
--
Thanks & Regards
Nitin Chaudhary
Nitin Chaudhary
MS, Electrical Engineering
University of Southern California
Intern, Zodiac In-flight Innovations
Powered by blists - more mailing lists