Showing error 624

User: Jiri Slaby
Error type: Double Unlock
Error type description: Some lock is unlocked twice unintentionally in a sequence
File location: fs/nfs/client.c
Line in file: 219
Project: Linux Kernel
Project version: 2.6.28
Tools: Stanse (1.2)
Entered: 2011-11-07 22:20:57 UTC

Source: 

 189        nfs4_shutdown_client(clp);
 190
 191        /* -EIO all pending I/O */
 192        if (!IS_ERR(clp->cl_rpcclient))
 193                rpc_shutdown_client(clp->cl_rpcclient);
 194
 195        if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
 196                nfs_callback_down();
 197
 198        if (clp->cl_machine_cred != NULL)
 199                put_rpccred(clp->cl_machine_cred);
 200
 201        kfree(clp->cl_hostname);
 202        kfree(clp);
 203
 204        dprintk("<-- nfs_free_client()\n");
 205}
 206
 207/*
 208 * Release a reference to a shared client record
 209 */
 210void nfs_put_client(struct nfs_client *clp)
 211{
 212        if (!clp)
 213                return;
 214
 215        dprintk("--> nfs_put_client({%d})\n", atomic_read(&clp->cl_count));
 216
 217        if (atomic_dec_and_lock(&clp->cl_count, &nfs_client_lock)) {
 218                list_del(&clp->cl_share_link);
 219                spin_unlock(&nfs_client_lock);
 220
 221                BUG_ON(!list_empty(&clp->cl_superblocks));
 222
 223                nfs_free_client(clp);
 224        }
 225}
 226
 227static int nfs_sockaddr_match_ipaddr4(const struct sockaddr_in *sa1,
 228                                 const struct sockaddr_in *sa2)
 229{
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