linux-kernel - [PATCH 4.13 15/44] net: bridge: fix returning of vlan range op errors

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Date:   Thu, 16 Nov 2017 18:42:39 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Nikolay Aleksandrov <nikolay@...ulusnetworks.com>,
        Roopa Prabhu <roopa@...ulusnetworks.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.13 15/44] net: bridge: fix returning of vlan range op errors

4.13-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>


[ Upstream commit 66c54517540cedf5a22911c6b7f5c7d8b5d1e1be ]

When vlan tunnels were introduced, vlan range errors got silently
dropped and instead 0 was returned always. Restore the previous
behaviour and return errors to user-space.

Fixes: efa5356b0d97 ("bridge: per vlan dst_metadata netlink support")
Signed-off-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Acked-by: Roopa Prabhu <roopa@...ulusnetworks.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/bridge/br_netlink.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -573,7 +573,7 @@ static int br_process_vlan_info(struct n
 		}
 		*vinfo_last = NULL;
 
-		return 0;
+		return err;
 	}
 
 	return br_vlan_info(br, p, cmd, vinfo_curr);