[PATCH 3/3] HID: hid-lenovo-go-s: Fix positive promotion bug

[Ethan Tidmore]

The function mcu_property_out() returns type int and returns negative
error codes. The variable count is assigned from it and checked with
(count < 0) but this check would always be false because count can
never be less than zero as it is size_t.

Change count to ssize_t.

Detected by Smatch:
drivers/hid/hid-lenovo-go-s.c:583 gamepad_property_show() warn:
unsigned 'count' is never less than zero.

drivers/hid/hid-lenovo-go-s.c:583 gamepad_property_show() warn:
error code type promoted to positive: 'count'

Fixes: 14651777fd675 ("HID: hid-lenovo-go-s: Add Feature Status Attributes")
Signed-off-by: Ethan Tidmore <ethantidmore06@xxxxxxxxx>
---
 drivers/hid/hid-lenovo-go-s.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-lenovo-go-s.c b/drivers/hid/hid-lenovo-go-s.c
index a24737170f83..4596c18037a9 100644
--- a/drivers/hid/hid-lenovo-go-s.c
+++ b/drivers/hid/hid-lenovo-go-s.c
@@ -573,7 +573,7 @@ static ssize_t gamepad_property_show(struct device *dev,
 				     struct device_attribute *attr, char *buf,
 				     enum feature_status_index index)
 {
-	size_t count = 0;
+	ssize_t count = 0;
 	u8 i;
 
 	count = mcu_property_out(drvdata.hdev, GET_GAMEPAD_CFG, index, 0, 0);
-- 
2.53.0