net: ena: fix return value of ena_com_config_llq_info()

BugLink: https://bugs.launchpad.net/bugs/1850175

ena_com_config_llq_info() returns 0 even if ena_com_set_llq() fails.
Return the failure code of ena_com_set_llq() in case it fails.

fixes: 689b2bda ("net: ena: add functions for handling Low Latency Queues in ena_com")
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 9a27de0c)
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Khaled Elmously <khalid.elmously@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

drivers/net/ethernet/amazon/ena/ena_com.c

@@ -731,7 +731,7 @@ static int ena_com_config_llq_info(struct ena_com_dev *ena_dev,
 	if (rc)
 		pr_err("Cannot set LLQ configuration: %d\n", rc);
 
-	return 0;
+	return rc;
 }
 
 static int ena_com_wait_and_process_admin_cq_interrupts(struct ena_comp_ctx *comp_ctx,