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authorStephen Hemminger <shemminger@vyatta.com>2008-11-26 08:12:32 +0300
committerDavid S. Miller <davem@davemloft.net>2008-11-26 08:13:25 +0300
commit0e991ec6a0340916d3f29bd5dcb35299069e7226 (patch)
treef8353915d1100b780e057a52f5be84102454af85 /net/sched/act_api.c
parent4ef8e768335637749af8d83327b174be0ea798a2 (diff)
downloadlinux-0e991ec6a0340916d3f29bd5dcb35299069e7226.tar.xz
tc: propogate errors from tcf_hash_create
Allow tcf_hash_create to return different errors on estimator failure. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/act_api.c')
-rw-r--r--net/sched/act_api.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 8f457f1e0acf..9d03cc33b6cc 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -214,12 +214,14 @@ struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a, int bind,
}
EXPORT_SYMBOL(tcf_hash_check);
-struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est, struct tc_action *a, int size, int bind, u32 *idx_gen, struct tcf_hashinfo *hinfo)
+struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
+ struct tc_action *a, int size, int bind,
+ u32 *idx_gen, struct tcf_hashinfo *hinfo)
{
struct tcf_common *p = kzalloc(size, GFP_KERNEL);
if (unlikely(!p))
- return p;
+ return ERR_PTR(-ENOMEM);
p->tcfc_refcnt = 1;
if (bind)
p->tcfc_bindcnt = 1;
@@ -228,9 +230,15 @@ struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est, struct tc_acti
p->tcfc_index = index ? index : tcf_hash_new_index(idx_gen, hinfo);
p->tcfc_tm.install = jiffies;
p->tcfc_tm.lastuse = jiffies;
- if (est)
- gen_new_estimator(&p->tcfc_bstats, &p->tcfc_rate_est,
- &p->tcfc_lock, est);
+ if (est) {
+ int err = gen_new_estimator(&p->tcfc_bstats, &p->tcfc_rate_est,
+ &p->tcfc_lock, est);
+ if (err) {
+ kfree(p);
+ return ERR_PTR(err);
+ }
+ }
+
a->priv = (void *) p;
return p;
}