diff options
Diffstat (limited to 'drivers/hid/hid-input.c')
| -rw-r--r-- | drivers/hid/hid-input.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 8741d953dcc..a713e621141 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -192,6 +192,7 @@ static int hidinput_setkeycode(struct input_dev *dev, return -EINVAL; } + /** * hidinput_calc_abs_res - calculate an absolute axis resolution * @field: the HID report field to calculate resolution for @@ -234,23 +235,17 @@ __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code) case ABS_MT_TOOL_Y: case ABS_MT_TOUCH_MAJOR: case ABS_MT_TOUCH_MINOR: - if (field->unit & 0xffffff00) /* Not a length */ - return 0; - unit_exponent += hid_snto32(field->unit >> 4, 4) - 1; - switch (field->unit & 0xf) { - case 0x1: /* If centimeters */ + if (field->unit == 0x11) { /* If centimeters */ /* Convert to millimeters */ unit_exponent += 1; - break; - case 0x3: /* If inches */ + } else if (field->unit == 0x13) { /* If inches */ /* Convert to millimeters */ prev = physical_extents; physical_extents *= 254; if (physical_extents < prev) return 0; unit_exponent -= 1; - break; - default: + } else { return 0; } break; @@ -1183,7 +1178,7 @@ static void hidinput_led_worker(struct work_struct *work) /* fall back to generic raw-output-report */ len = ((report->size - 1) >> 3) + 1 + (report->id > 0); - buf = kmalloc(len, GFP_KERNEL); + buf = hid_alloc_report_buf(report, GFP_KERNEL); if (!buf) return; @@ -1284,7 +1279,7 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid) input_dev->id.vendor = hid->vendor; input_dev->id.product = hid->product; input_dev->id.version = hid->version; - input_dev->dev.parent = hid->dev.parent; + input_dev->dev.parent = &hid->dev; hidinput->input = input_dev; list_add_tail(&hidinput->list, &hid->inputs); |