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>
git-mirror · May 14, 2012 · bb2e197 · bb2e197
1 parent 0cd516c
commit bb2e197
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
@@ -230,6 +230,7 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
 		return -1;
 	}
 
+	/* Handle both signed and unsigned cases properly */
 	if ((parser->global.logical_minimum < 0 &&
 		parser->global.logical_maximum <
 		parser->global.logical_minimum) ||