HID: explain the signed/unsigned handling in hid_add_field()
Put a comment that clarifies the condition that handles both signed
and unsigned case for logical min/max in hid_add_field().
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 0bfbc48..dc05d9b 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -230,6 +230,7 @@
return -1;
}
+ /* Handle both signed and unsigned cases properly */
if ((parser->global.logical_minimum < 0 &&
parser->global.logical_maximum <
parser->global.logical_minimum) ||