Showing error 969

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/ipv4/ipmr.c
Line in file: 1839
Project: Linux Kernel
Project version: 2.6.28
Tools: Stanse (1.2)
Entered: 2012-03-02 21:35:17 UTC

Source: 

1809        struct mfc_cache *mfc = v;
1810        struct ipmr_mfc_iter *it = seq->private;
1811
1812        ++*pos;
1813
1814        if (v == SEQ_START_TOKEN)
1815                return ipmr_mfc_seq_idx(seq->private, 0);
1816
1817        if (mfc->next)
1818                return mfc->next;
1819
1820        if (it->cache == &mfc_unres_queue)
1821                goto end_of_list;
1822
1823        BUG_ON(it->cache != mfc_cache_array);
1824
1825        while (++it->ct < MFC_LINES) {
1826                mfc = mfc_cache_array[it->ct];
1827                if (mfc)
1828                        return mfc;
1829        }
1830
1831        /* exhausted cache_array, show unresolved */
1832        read_unlock(&mrt_lock);
1833        it->cache = &mfc_unres_queue;
1834        it->ct = 0;
1835
1836        spin_lock_bh(&mfc_unres_lock);
1837        mfc = mfc_unres_queue;
1838        if (mfc)
1839                return mfc;
1840
1841 end_of_list:
1842        spin_unlock_bh(&mfc_unres_lock);
1843        it->cache = NULL;
1844
1845        return NULL;
1846}
1847
1848static void ipmr_mfc_seq_stop(struct seq_file *seq, void *v)
1849{
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