ethtool: prevent null pointer dereference with NTUPLE set but no set_rx_ntuple

[pandora-kernel.git] / net / core / ethtool.c

diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 1b7fa98..704e176 100644 (file)
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -910,6 +910,9 @@ static noinline_for_stack int ethtool_set_rx_ntuple(struct net_device *dev,
        struct ethtool_rx_ntuple_flow_spec_container *fsc = NULL;
        int ret;
 
+       if (!ops->set_rx_ntuple)
+               return -EOPNOTSUPP;
+
        if (!(dev->features & NETIF_F_NTUPLE))
                return -EINVAL;