HID: remove self-assignment from hid_input_report

The ternary expression will always result in a self-assignment, which is
pointless.
Signed-off-by: NFelix Rueegg <felix.rueegg@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

drivers/hid/hid-core.c

@@ -1417,10 +1417,8 @@ int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int i
 
 	if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
 		ret = hdrv->raw_event(hid, report, data, size);
-		if (ret < 0) {
-			ret = ret < 0 ? ret : 0;
+		if (ret < 0)
 			goto unlock;
-		}
 	}
 
 	ret = hid_report_raw_event(hid, type, data, size, interrupt);