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authorWojciech Drewek2023-07-12 13:03:28 +0200
committerGreg Kroah-Hartman2023-09-23 11:11:01 +0200
commit5760a72b3060150b587eff3e879648c7470efddd (patch)
tree8ef888b140c7c0fbe9dbbad27eddbe66e95f707e
parentad58d7ebbf936c3e9730cc3164af9753b276851c (diff)
ice: Don't tx before switchdev is fully configured
[ Upstream commit 7aa529a69e92b9aff585e569d5003f7c15d8d60b ] There is possibility that ice_eswitch_port_start_xmit might be called while some resources are still not allocated which might cause NULL pointer dereference. Fix this by checking if switchdev configuration was finished. Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com> Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/net/ethernet/intel/ice/ice_eswitch.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_eswitch.c b/drivers/net/ethernet/intel/ice/ice_eswitch.c
index 2ffe5708a045..7de4a8a4b563 100644
--- a/drivers/net/ethernet/intel/ice/ice_eswitch.c
+++ b/drivers/net/ethernet/intel/ice/ice_eswitch.c
@@ -361,6 +361,9 @@ ice_eswitch_port_start_xmit(struct sk_buff *skb, struct net_device *netdev)
np = netdev_priv(netdev);
vsi = np->vsi;
+ if (!vsi || !ice_is_switchdev_running(vsi->back))
+ return NETDEV_TX_BUSY;
+
if (ice_is_reset_in_progress(vsi->back->state) ||
test_bit(ICE_VF_DIS, vsi->back->state))
return NETDEV_TX_BUSY;