[PATCH AUTOSEL for 4.9 090/293] cxgb4: fix a NULL dereference

[Sasha Levin]

From: Ganesh Goudar <ganes...@chelsio.com>

[ Upstream commit d427caee5a3f04938f47bec6fdec97a52668ee53 ]

Avoid NULL dereference in setup_sge_queues() when the adapter is
in non offload mode.

Fixes: 0fbc81b3ad51 ('chcr/cxgb4i/cxgbit/RDMA/cxgb4: Allocate resources 
dynamically for all cxgb4 ULD's')
Signed-off-by: Ganesh Goudar <ganes...@chelsio.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c 
b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 0c2a32a305bc..7968bdb85bb1 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -853,9 +853,12 @@ static int setup_sge_queues(struct adapter *adap)
 {
        int err, i, j;
        struct sge *s = &adap->sge;
-       struct sge_uld_rxq_info *rxq_info = s->uld_rxq_info[CXGB4_ULD_RDMA];
+       struct sge_uld_rxq_info *rxq_info = NULL;
        unsigned int cmplqid = 0;
 
+       if (is_uld(adap))
+               rxq_info = s->uld_rxq_info[CXGB4_ULD_RDMA];
+
        for_each_port(adap, i) {
                struct net_device *dev = adap->port[i];
                struct port_info *pi = netdev_priv(dev);
-- 
2.15.1