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-rw-r--r--drivers/infiniband/core/mad.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index 822cfdcd9f78..b4d8672a3e4e 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -276,6 +276,13 @@ struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
goto error1;
}
+ /* Verify the QP requested is supported. For example, Ethernet devices
+ * will not have QP0 */
+ if (!port_priv->qp_info[qpn].qp) {
+ ret = ERR_PTR(-EPROTONOSUPPORT);
+ goto error1;
+ }
+
/* Allocate structures */
mad_agent_priv = kzalloc(sizeof *mad_agent_priv, GFP_KERNEL);
if (!mad_agent_priv) {

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