IB/ipath: deref correct pointer when using kernel SMA

At this point, the core QP structure hasn't been initialized, so what's
in there isn't valid. Get the same information elsewhere.

Signed-off-by: Bryan O'Sullivan <[e-mail]>
Signed-off-by: Roland Dreier <[e-mail]>

drivers/infiniband/hw/ipath/ipath_qp.c

···
 		ipath_reset_qp(qp);
 
 		/* Tell the core driver that the kernel SMA is present. */
-		if (qp->ibqp.qp_type == IB_QPT_SMI)
+		if (init_attr->qp_type == IB_QPT_SMI)
 			ipath_layer_set_verbs_flags(dev->dd,
 						    IPATH_VERBS_KERNEL_SMA);
 		break;