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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-02-02 15:37:43 -0800 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-02-03 15:35:02 -0800 |
| commit | a995e9eb3258df6ab2e9f958e08003978e50d568 (patch) | |
| tree | 03caf30a4c79f5b2254ad1f15b98bfe4d3519983 /fs/lockd | |
| parent | ce35a81a71f405031ed6fd0d454d3aaa55dc8ed2 (diff) | |
| download | lwn-a995e9eb3258df6ab2e9f958e08003978e50d568.tar.gz lwn-a995e9eb3258df6ab2e9f958e08003978e50d568.zip | |
NLM: Fix double free in __nlm_async_call
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>
Diffstat (limited to 'fs/lockd')
| -rw-r--r-- | fs/lockd/clntproc.c | 9 | ||||
| -rw-r--r-- | fs/lockd/svclock.c | 4 |
2 files changed, 4 insertions, 9 deletions
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c index 0b4acc1c5e7d..a5c019e1a447 100644 --- a/fs/lockd/clntproc.c +++ b/fs/lockd/clntproc.c @@ -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) diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c index c7db0a5bccdc..cf51f849e76c 100644 --- a/fs/lockd/svclock.c +++ b/fs/lockd/svclock.c @@ -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); } /* |