HID: pidff: Simplify pidff_rescale_signed

This function overrelies on ternary operators and makes it hard to parse
it mentally. New version makes it very easy to understand.

Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com>
Reviewed-by: Michał Kopeć <michal@nozomi.space>
Reviewed-by: Paul Dino Jones <paul@spacefreak18.xyz>
Tested-by: Paul Dino Jones <paul@spacefreak18.xyz>
Tested-by: Cristóferson Bueno <cbueno81@gmail.com>
Tested-by: Pablo Cisneros <patchkez@protonmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>

Author: Lawstorant

drivers/hid/usbhid/hid-pidff.c

@@ -230,9 +230,9 @@ static int pidff_rescale(int i, int max, struct hid_field *field)
  */
 static int pidff_rescale_signed(int i, struct hid_field *field)
 {
-	return i == 0 ? 0 : i >
-	    0 ? i * field->logical_maximum / 0x7fff : i *
-	    field->logical_minimum / -0x8000;
+	if (i > 0) return i * field->logical_maximum / 0x7fff;
+	if (i < 0) return i * field->logical_minimum / -0x8000;
+	return 0;
 }
 
 /*