RDMA/providers: Fix return value from create_srq callbacks

The proper return code is "-EOPNOTSUPP" when the create_srq() callback
is not supported.

Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/bnxt_re/ib_verbs.c

@@ -1397,7 +1397,7 @@ struct ib_srq *bnxt_re_create_srq(struct ib_pd *ib_pd,
 	}
 
 	if (srq_init_attr->srq_type != IB_SRQT_BASIC) {
-		rc = -ENOTSUPP;
+		rc = -EOPNOTSUPP;
 		goto exit;
 	}
 

drivers/infiniband/hw/mthca/mthca_provider.c

@@ -449,7 +449,7 @@ static struct ib_srq *mthca_create_srq(struct ib_pd *pd,
 	int err;
 
 	if (init_attr->srq_type != IB_SRQT_BASIC)
-		return ERR_PTR(-ENOSYS);
+		return ERR_PTR(-EOPNOTSUPP);
 
 	srq = kmalloc(sizeof *srq, GFP_KERNEL);
 	if (!srq)

drivers/infiniband/sw/rdmavt/srq.c

@@ -82,7 +82,7 @@ struct ib_srq *rvt_create_srq(struct ib_pd *ibpd,
 	struct ib_srq *ret;
 
 	if (srq_init_attr->srq_type != IB_SRQT_BASIC)
-		return ERR_PTR(-ENOSYS);
+		return ERR_PTR(-EOPNOTSUPP);
 
 	if (srq_init_attr->attr.max_sge == 0 ||
 	    srq_init_attr->attr.max_sge > dev->dparms.props.max_srq_sge ||