[PATCH net 2/6] ethtool: rss: add missing errno on RSS context delete

[Jakub Kicinski <kuba@kernel.org>]

Remember to set ret before jumping out if someone tries
to delete a context on a device which doesn't support
contexts.

Fixes: fbe09277fa63 ("ethtool: rss: support removing contexts via Netlink")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
CC: andrew@lunn.ch
CC: gal@nvidia.com
---
 net/ethtool/rss.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ethtool/rss.c b/net/ethtool/rss.c
index 8ffec9785efa..a16ee1e8e640 100644
--- a/net/ethtool/rss.c
+++ b/net/ethtool/rss.c
@@ -1170,8 +1170,10 @@ int ethnl_rss_delete_doit(struct sk_buff *skb, struct genl_info *info)
 	dev = req.dev;
 	ops = dev->ethtool_ops;
 
-	if (!ops->create_rxfh_context)
+	if (!ops->create_rxfh_context) {
+		ret = -EOPNOTSUPP;
 		goto exit_free_dev;
+	}
 
 	rtnl_lock();
 	netdev_lock_ops(dev);
-- 
2.54.0