linux-kernel - [PATCH] net: ixgbevf: fix a missing check of ixgbevf_write_msg_read

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Date:   Fri,  8 Mar 2019 21:31:23 -0600
From:   Kangjie Lu <kjlu@....edu>
To:     kjlu@....edu
Cc:     pakki001@....edu, Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] net: ixgbevf: fix a missing check of ixgbevf_write_msg_read_ack

If ixgbevf_write_msg_read_ack fails, return its error code upstream

Signed-off-by: Kangjie Lu <kjlu@....edu>
---
 drivers/net/ethernet/intel/ixgbevf/vf.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.c b/drivers/net/ethernet/intel/ixgbevf/vf.c
index cd3b81300cc7..d5ce49636548 100644
--- a/drivers/net/ethernet/intel/ixgbevf/vf.c
+++ b/drivers/net/ethernet/intel/ixgbevf/vf.c
@@ -508,9 +508,8 @@ static s32 ixgbevf_update_mc_addr_list_vf(struct ixgbe_hw *hw,
 		vector_list[i++] = ixgbevf_mta_vector(hw, ha->addr);
 	}
 
-	ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, IXGBE_VFMAILBOX_SIZE);
-
-	return 0;
+	return ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf,
+			IXGBE_VFMAILBOX_SIZE);
 }
 
 /**
-- 
2.17.1