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[PATCH 3.12 114/123] SUNRPC: Fix a memory leak in the backchannel code

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  [PATCH 3.12 114/123] SUNRPC: Fix a memory leak in the backchannel code Jiri Slaby <jslaby@suse.cz> - 2015-08-04 16:50 +0200

#1199950 — [PATCH 3.12 114/123] SUNRPC: Fix a memory leak in the backchannel code

From: Trond Myklebust <trond.myklebust@primarydata.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 88de6af24f2b48b06c514d3c3d0a8f22fafe30bd upstream.

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

Fixes: fb7a0b9addbdb ("nfs41: New backchannel helper routines")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 net/sunrpc/backchannel_rqst.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sunrpc/backchannel_rqst.c b/net/sunrpc/backchannel_rqst.c
index e860d4f7ed2a..ab219685336c 100644
--- a/net/sunrpc/backchannel_rqst.c
+++ b/net/sunrpc/backchannel_rqst.c
@@ -60,7 +60,7 @@ static void xprt_free_allocation(struct rpc_rqst *req)
 
 	dprintk("RPC:        free allocations for req= %p\n", req);
 	WARN_ON_ONCE(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);
-- 
2.5.0

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