net: fix DCB setstate to return success/failure

Data Center Bridging (DCB) had no way to know if setstate had failed in the
driver.  This patch enables dcb netlink code to handle the status for the DCB
setstate interface.  Likewise it allows the driver to return a failed status
if MSI-X isn't enabled.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Eric W Multanen <eric.w.multanen@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 3 deletions

diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index a1254061629..fc88fc4d4f6 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -714,9 +714,8 @@ static int dcbnl_setstate(struct net_device *netdev, struct nlattr **tb,
 
         value = nla_get_u8(tb[DCB_ATTR_STATE]);
 
-        netdev->dcbnl_ops->setstate(netdev, value);
-
-        ret = dcbnl_reply(0, RTM_SETDCB, DCB_CMD_SSTATE, DCB_ATTR_STATE,
+        ret = dcbnl_reply(netdev->dcbnl_ops->setstate(netdev, value),
+                          RTM_SETDCB, DCB_CMD_SSTATE, DCB_ATTR_STATE,
                           pid, seq, flags);
 
         return ret;