net/ena: fix return of hash control flushing

In function ena_com_set_hash_ctrl(), the return value is assigned to
"ret" variable, but it is not returned. Fix it by adding the return.

Fixes: 99ecfbf845b3 ("ena: import communication layer")
Cc: stable@dpdk.org

Signed-off-by: Yong Wang <wang.yong19@zte.com.cn>
Acked-by: Jan Medala <jan@semihalf.com>

drivers/net/ena/base/ena_com.c

@@ -2278,7 +2278,7 @@ int ena_com_set_hash_ctrl(struct ena_com_dev *ena_dev)
 					    sizeof(resp));
 	if (unlikely(ret)) {
 		ena_trc_err("Failed to set hash input. error: %d\n", ret);
-		ret = ENA_COM_INVAL;
+		return ENA_COM_INVAL;
 	}
 
 	return 0;