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authorJohn Fastabend <john.fastabend@gmail.com>2014-09-20 08:50:04 +0400
committerDavid S. Miller <davem@davemloft.net>2014-09-22 23:59:21 +0400
commita1ddcfee2d9ae172d0095f3f8227f7fa53288c65 (patch)
tree1403193490b5bb5373603ec13c0dd4a7c3944e56 /net/sched/cls_u32.c
parent37ab7ddf3f81cec9175f53f17c357bb0d27a343e (diff)
downloadlinux-a1ddcfee2d9ae172d0095f3f8227f7fa53288c65.tar.xz
net: cls_u32: fix missed pcpu_success free_percpu
This fixes a missed free_percpu in the unwind code path and when keys are destroyed. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/cls_u32.c')
-rw-r--r--net/sched/cls_u32.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 730edb29d43b..8d90e50a8ce4 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -363,6 +363,9 @@ static int u32_destroy_key(struct tcf_proto *tp, struct tc_u_knode *n)
#ifdef CONFIG_CLS_U32_PERF
free_percpu(n->pf);
#endif
+#ifdef CONFIG_CLS_U32_MARK
+ free_percpu(n->pcpu_success);
+#endif
kfree(n);
return 0;
}
@@ -693,6 +696,10 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
#ifdef CONFIG_CLS_U32_MARK
n->pcpu_success = alloc_percpu(u32);
+ if (!n->pcpu_success) {
+ err = -ENOMEM;
+ goto errout;
+ }
if (tb[TCA_U32_MARK]) {
struct tc_u32_mark *mark;
@@ -720,6 +727,12 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
*arg = (unsigned long)n;
return 0;
}
+
+#ifdef CONFIG_CLS_U32_MARK
+ free_percpu(n->pcpu_success);
+#endif
+
+errout:
#ifdef CONFIG_CLS_U32_PERF
free_percpu(n->pf);
#endif