diff options
Diffstat (limited to 'net/sched/sch_taprio.c')
| -rw-r--r-- | net/sched/sch_taprio.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c index 1f469861eae3..cbad43019172 100644 --- a/net/sched/sch_taprio.c +++ b/net/sched/sch_taprio.c @@ -1520,7 +1520,9 @@ static int taprio_enable_offload(struct net_device *dev, return -ENOMEM; } offload->enable = 1; + offload->extack = extack; mqprio_qopt_reconstruct(dev, &offload->mqprio.qopt); + offload->mqprio.extack = extack; taprio_sched_to_offload(dev, sched, offload, &caps); for (tc = 0; tc < TC_MAX_QUEUE; tc++) @@ -1528,14 +1530,20 @@ static int taprio_enable_offload(struct net_device *dev, err = ops->ndo_setup_tc(dev, TC_SETUP_QDISC_TAPRIO, offload); if (err < 0) { - NL_SET_ERR_MSG(extack, - "Device failed to setup taprio offload"); + NL_SET_ERR_MSG_WEAK(extack, + "Device failed to setup taprio offload"); goto done; } q->offloaded = true; done: + /* The offload structure may linger around via a reference taken by the + * device driver, so clear up the netlink extack pointer so that the + * driver isn't tempted to dereference data which stopped being valid + */ + offload->extack = NULL; + offload->mqprio.extack = NULL; taprio_offload_free(offload); return err; |