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NLM: Fix double free in __nlm_async_call

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rpc_call_async() will always call rpc_release_calldata(), so it is an
error for __nlm_async_call() to do so as well.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2007-02-02 15:37:43 -08:00
parent ce35a81a71
commit a995e9eb32
2 changed files with 4 additions and 9 deletions
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9
fs/lockd/clntproc.c
View File

@ -361,7 +361,6 @@ static int __nlm_async_call(struct nlm_rqst *req, u32 proc, struct rpc_message *
{
struct nlm_host *host = req->a_host;
struct rpc_clnt *clnt;
int status = -ENOLCK;
dprintk("lockd: call procedure %d on %s (async)\n",
(int)proc, host->h_name);
@ -373,12 +372,10 @@ static int __nlm_async_call(struct nlm_rqst *req, u32 proc, struct rpc_message *
msg->rpc_proc = &clnt->cl_procinfo[proc];
/* bootstrap and kick off the async RPC call */
status = rpc_call_async(clnt, msg, RPC_TASK_ASYNC, tk_ops, req);
if (status == 0)
return 0;
return rpc_call_async(clnt, msg, RPC_TASK_ASYNC, tk_ops, req);
out_err:
nlm_release_call(req);
return status;
tk_ops->rpc_release(req);
return -ENOLCK;
}
int nlm_async_call(struct nlm_rqst *req, u32 proc, const struct rpc_call_ops *tk_ops)

4
fs/lockd/svclock.c
View File

@ -593,9 +593,7 @@ callback:
/* Call the client */
kref_get(&block->b_count);
if (nlm_async_call(block->b_call, NLMPROC_GRANTED_MSG,
&nlmsvc_grant_ops) < 0)
nlmsvc_release_block(block);
nlm_async_call(block->b_call, NLMPROC_GRANTED_MSG, &nlmsvc_grant_ops);
}
/*