diff options
| author | Stephen Hemminger <shemminger@vyatta.com> | 2008-11-25 21:13:31 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-11-25 21:13:31 -0800 |
| commit | 71bcb09a57894fa35591ce93dd972065eeecb63a (patch) | |
| tree | 50ca8a43125f0aa89f1444928a209420754a79f3 /net/sched/sch_htb.c | |
| parent | 0e991ec6a0340916d3f29bd5dcb35299069e7226 (diff) | |
| download | blackbird-op-linux-71bcb09a57894fa35591ce93dd972065eeecb63a.tar.gz blackbird-op-linux-71bcb09a57894fa35591ce93dd972065eeecb63a.zip | |
tc: check for errors in gen_rate_estimator creation
The functions gen_new_estimator and gen_replace_estimator can return
errors, but they were being ignored.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_htb.c')
| -rw-r--r-- | net/sched/sch_htb.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 3a119f576bb3..8a4519989732 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -1332,9 +1332,14 @@ static int htb_change_class(struct Qdisc *sch, u32 classid, if ((cl = kzalloc(sizeof(*cl), GFP_KERNEL)) == NULL) goto failure; - gen_new_estimator(&cl->bstats, &cl->rate_est, - qdisc_root_sleeping_lock(sch), - tca[TCA_RATE] ? : &est.nla); + err = gen_new_estimator(&cl->bstats, &cl->rate_est, + qdisc_root_sleeping_lock(sch), + tca[TCA_RATE] ? : &est.nla); + if (err) { + kfree(cl); + goto failure; + } + cl->refcnt = 1; cl->children = 0; INIT_LIST_HEAD(&cl->un.leaf.drop_list); @@ -1386,10 +1391,13 @@ static int htb_change_class(struct Qdisc *sch, u32 classid, if (parent) parent->children++; } else { - if (tca[TCA_RATE]) - gen_replace_estimator(&cl->bstats, &cl->rate_est, - qdisc_root_sleeping_lock(sch), - tca[TCA_RATE]); + if (tca[TCA_RATE]) { + err = gen_replace_estimator(&cl->bstats, &cl->rate_est, + qdisc_root_sleeping_lock(sch), + tca[TCA_RATE]); + if (err) + return err; + } sch_tree_lock(sch); } |
