[PATCH] rpcrdma_decode_msg: check xdr_inline_decode result

[Navid Emamdoost]

xdr_inline_decode may return NULL, so the check is necessary. The base
pointer will be dereferenced later in rpcrdma_inline_fixup.

Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
---
 net/sunrpc/xprtrdma/rpc_rdma.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 4345e6912392..d0479efe0e72 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -1160,6 +1160,9 @@ rpcrdma_decode_msg(struct rpcrdma_xprt *r_xprt, struct rpcrdma_rep *rep,
 
 	/* Build the RPC reply's Payload stream in rqst->rq_rcv_buf */
 	base = (char *)xdr_inline_decode(xdr, 0);
+	if (!base)
+		return -EIO;
+
 	rpclen = xdr_stream_remaining(xdr);
 	r_xprt->rx_stats.fixup_copy_count +=
 		rpcrdma_inline_fixup(rqst, base, rpclen, writelist & 3);
-- 
2.17.1