Mailing List Archive

We attempt to remove noise from coordinates reported by devices in
input_handle_abs_event(), unfortunately, unless we were dropping the
event altogether, we were ignoring the adjusted value and were passing
on the original value instead.

Reviewed-by: Andrew de los Reyes <adlr@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
drivers/input/input.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 1c4c0db..29ca0bb 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -257,9 +257,10 @@ static int input_handle_abs_event(struct input_dev *dev,
}

static int input_get_disposition(struct input_dev *dev,
- unsigned int type, unsigned int code, int value)
+ unsigned int type, unsigned int code, int *pval)
{
int disposition = INPUT_IGNORE_EVENT;
+ int value = *pval;

switch (type) {

@@ -357,6 +358,7 @@ static int input_get_disposition(struct input_dev *dev,
break;
}

+ *pval = value;
return disposition;
}

@@ -365,7 +367,7 @@ static void input_handle_event(struct input_dev *dev,
{
int disposition;

- disposition = input_get_disposition(dev, type, code, value);
+ disposition = input_get_disposition(dev, type, code, &value);

if ((disposition & INPUT_PASS_TO_DEVICE) && dev->event)
dev->event(dev, type, code, value);

--
Dmitry
--
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