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| author |   Ping Cheng <pinglinux@gmail.com> | 2016-07-19 11:13:17 -0700 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-07-19 11:42:44 -0700 |
| commit | 3746e5675211104844310a918fc2bf583f4a01b4 (patch) | |
| tree | 0ba9910f2228c5ce70193dc9c2309275c52c1cbf /drivers/input/touchscreen | |
| parent | Input: wacom_w8001 - resolution wasn't set for ABS_MT_POSITION_X/Y (diff) | |
| download | linux-dev-3746e5675211104844310a918fc2bf583f4a01b4.tar.xz linux-dev-3746e5675211104844310a918fc2bf583f4a01b4.zip | |
Input: wacom_w8001 - handle errors from input_mt_init_slots()
input_mt_init_slots() may fail and we should be handling failures properly.
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/touchscreen')
| -rw-r--r-- | drivers/input/touchscreen/wacom_w8001.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c index c1dac8628817..85e95725d0df 100644 --- a/drivers/input/touchscreen/wacom_w8001.c +++ b/drivers/input/touchscreen/wacom_w8001.c @@ -518,7 +518,13 @@ static int w8001_setup_touch(struct w8001 *w8001, char *basename, w8001->pktlen = W8001_PKTLEN_TOUCH2FG; __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); - input_mt_init_slots(dev, 2, 0); + error = input_mt_init_slots(dev, 2, 0); + if (error) { + dev_err(&w8001->serio->dev, + "failed to initialize MT slots: %d\n", error); + return error; + } + input_set_abs_params(dev, ABS_MT_POSITION_X, 0, touch.x, 0, 0); input_set_abs_params(dev, ABS_MT_POSITION_Y, |