diff options
Diffstat (limited to 'drivers/input/touchscreen/wacom_w8001.c')
| -rw-r--r-- | drivers/input/touchscreen/wacom_w8001.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c index 222006ee23fa..9ea5f8226a31 100644 --- a/drivers/input/touchscreen/wacom_w8001.c +++ b/drivers/input/touchscreen/wacom_w8001.c @@ -385,7 +385,7 @@ static int w8001_setup(struct w8001 *w8001) struct input_dev *dev = w8001->dev; struct w8001_coord coord; struct w8001_touch_query touch; - int error; + int error, err_pen, err_touch; error = w8001_command(w8001, W8001_CMD_STOP, false); if (error) @@ -400,8 +400,8 @@ static int w8001_setup(struct w8001 *w8001) __set_bit(INPUT_PROP_DIRECT, dev->propbit); /* penabled? */ - error = w8001_command(w8001, W8001_CMD_QUERY, true); - if (!error) { + err_pen = w8001_command(w8001, W8001_CMD_QUERY, true); + if (!err_pen) { __set_bit(BTN_TOUCH, dev->keybit); __set_bit(BTN_TOOL_PEN, dev->keybit); __set_bit(BTN_TOOL_RUBBER, dev->keybit); @@ -426,13 +426,12 @@ static int w8001_setup(struct w8001 *w8001) } /* Touch enabled? */ - error = w8001_command(w8001, W8001_CMD_TOUCHQUERY, true); + err_touch = w8001_command(w8001, W8001_CMD_TOUCHQUERY, true); - /* - * Some non-touch devices may reply to the touch query. But their - * second byte is empty, which indicates touch is not supported. - */ - if (!error && w8001->response[1]) { + if (!err_touch && !w8001->response[1]) + err_touch = -ENXIO; + + if (!err_touch) { __set_bit(BTN_TOUCH, dev->keybit); __set_bit(BTN_TOOL_FINGER, dev->keybit); @@ -491,7 +490,7 @@ static int w8001_setup(struct w8001 *w8001) strlcat(w8001->name, " Touchscreen", sizeof(w8001->name)); - return 0; + return !err_pen || !err_touch ? 0 : -ENXIO; } /* |