[PATCH libinput 1/2] touchpad: Simplify tp_hysteresis

[Hans de Goede]

Once we get beyond the:

	if (abs(diff) <= margin)
		return center;

test, then diff is either > margin or < -margin, otherwise the test would
have triggered.

So the "return center + diff;" at the end will never be reached, and the
"else if (diff < -margin)" can be turned into a simple "else".

This commit does not just simplify tp_hysteresis, but (arguably more
important) also makes it clearer to the reader what it does.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 src/evdev-mt-touchpad.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c
index ced9237..9e858f1 100644
--- a/src/evdev-mt-touchpad.c
+++ b/src/evdev-mt-touchpad.c
@@ -42,9 +42,8 @@ tp_hysteresis(int in, int center, int margin)
 
 	if (diff > margin)
 		return center + diff - margin;
-	else if (diff < -margin)
+	else
 		return center + diff + margin;
-	return center + diff;
 }
 
 static double
-- 
2.0.0