Showing error 1499

User: Jiri Slaby
Error type: Leaving function in locked state
Error type description: Some lock is not unlocked on all paths of a function, so it is leaked
File location: net/ipv6/reassembly.c
Line in file: 257
Project: Linux Kernel
Project version: 2.6.28
Tools: Stanse (1.2)
Entered: 2012-05-21 20:30:05 UTC

Source: 

227           pointer directly, device might already disappeared.
228         */
229        fq->q.fragments->dev = dev;
230        icmpv6_send(fq->q.fragments, ICMPV6_TIME_EXCEED, ICMPV6_EXC_FRAGTIME, 0, dev);
231out:
232        if (dev)
233                dev_put(dev);
234        spin_unlock(&fq->q.lock);
235        fq_put(fq);
236}
237
238static __inline__ struct frag_queue *
239fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst,
240        struct inet6_dev *idev)
241{
242        struct inet_frag_queue *q;
243        struct ip6_create_arg arg;
244        unsigned int hash;
245
246        arg.id = id;
247        arg.src = src;
248        arg.dst = dst;
249
250        read_lock(&ip6_frags.lock);
251        hash = inet6_hash_frag(id, src, dst, ip6_frags.rnd);
252
253        q = inet_frag_find(&net->ipv6.frags, &ip6_frags, &arg, hash);
254        if (q == NULL)
255                goto oom;
256
257        return container_of(q, struct frag_queue, q);
258
259oom:
260        IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_REASMFAILS);
261        return NULL;
262}
263
264static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
265                           struct frag_hdr *fhdr, int nhoff)
266{
267        struct sk_buff *prev, *next;
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