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SUNRPC: Fix a memory leak in the backchannel code

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commit 88de6af24f2b48b06c514d3c3d0a8f22fafe30bd upstream.

req->rq_private_buf isn't initialised when xprt_setup_backchannel calls
xprt_free_allocation.

Fixes: fb7a0b9add ("nfs41: New backchannel helper routines")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
[lizf: Backported to 3.4: adjust context]
Signed-off-by: Zefan Li <lizefan@huawei.com>
This commit is contained in:
Trond Myklebust 2015-06-01 15:10:25 -04:00 committed by Zefan Li
parent 3c868f46dd
commit a8bed8ce6e
1 changed files with 1 additions and 1 deletions
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2
net/sunrpc/backchannel_rqst.c
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@ -60,7 +60,7 @@ static void xprt_free_allocation(struct rpc_rqst *req)
dprintk("RPC: free allocations for req= %p\n", req);
BUG_ON(test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state));
xbufp = &req->rq_private_buf;
xbufp = &req->rq_rcv_buf;
free_page((unsigned long)xbufp->head[0].iov_base);
xbufp = &req->rq_snd_buf;
free_page((unsigned long)xbufp->head[0].iov_base);