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2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/drivers/infiniband/ulp/srpt/ib_srpt.c
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@@ -549,6 +549,7 @@
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  */
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 static int srpt_refresh_port(struct srpt_port *sport)
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 {
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+	struct ib_mad_agent *mad_agent;
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 	struct ib_mad_reg_req reg_req;
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 	struct ib_port_modify port_modify;
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 	struct ib_port_attr port_attr;
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@@ -593,24 +594,26 @@
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 		set_bit(IB_MGMT_METHOD_GET, reg_req.method_mask);
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 		set_bit(IB_MGMT_METHOD_SET, reg_req.method_mask);
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-		sport->mad_agent = ib_register_mad_agent(sport->sdev->device,
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-							 sport->port,
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-							 IB_QPT_GSI,
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-							 &reg_req, 0,
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-							 srpt_mad_send_handler,
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-							 srpt_mad_recv_handler,
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-							 sport, 0);
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-		if (IS_ERR(sport->mad_agent)) {
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+		mad_agent = ib_register_mad_agent(sport->sdev->device,
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+						  sport->port,
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+						  IB_QPT_GSI,
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+						  &reg_req, 0,
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+						  srpt_mad_send_handler,
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+						  srpt_mad_recv_handler,
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+						  sport, 0);
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+		if (IS_ERR(mad_agent)) {
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 			pr_err("%s-%d: MAD agent registration failed (%ld). Note: this is expected if SR-IOV is enabled.\n",
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 			       dev_name(&sport->sdev->device->dev), sport->port,
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-			       PTR_ERR(sport->mad_agent));
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+			       PTR_ERR(mad_agent));
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 			sport->mad_agent = NULL;
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 			memset(&port_modify, 0, sizeof(port_modify));
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 			port_modify.clr_port_cap_mask = IB_PORT_DEVICE_MGMT_SUP;
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 			ib_modify_port(sport->sdev->device, sport->port, 0,
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 				       &port_modify);
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-
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+			return 0;
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 		}
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+
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+		sport->mad_agent = mad_agent;
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 	}
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 	return 0;