X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fcommon%2Fsfc_efx%2Fbase%2Fef10_nic.c;h=eda0ad30683b195bdd0334b752f81f82f8c4d04a;hb=c4f4a0e60dcb2a3877a4a751d7641fa1d9c46c29;hp=9dccde95760ff474b922e86621468b1968c3b1e7;hpb=be2f2be77ce2ee52cbc15ba4831152974990ac5c;p=dpdk.git

diff --git a/drivers/common/sfc_efx/base/ef10_nic.c b/drivers/common/sfc_efx/base/ef10_nic.c
index 9dccde9576..eda0ad3068 100644
--- a/drivers/common/sfc_efx/base/ef10_nic.c
+++ b/drivers/common/sfc_efx/base/ef10_nic.c
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  *
- * Copyright(c) 2019-2020 Xilinx, Inc.
+ * Copyright(c) 2019-2021 Xilinx, Inc.
  * Copyright(c) 2012-2019 Solarflare Communications Inc.
  */
 
@@ -491,11 +491,17 @@ efx_mcdi_get_rxdp_config(
 	req.emr_out_length = MC_CMD_GET_RXDP_CONFIG_OUT_LEN;
 
 	efx_mcdi_execute(enp, &req);
+
 	if (req.emr_rc != 0) {
 		rc = req.emr_rc;
 		goto fail1;
 	}
 
+	if (req.emr_out_length_used < MC_CMD_GET_RXDP_CONFIG_OUT_LEN) {
+		rc = EMSGSIZE;
+		goto fail2;
+	}
+
 	if (MCDI_OUT_DWORD_FIELD(req, GET_RXDP_CONFIG_OUT_DATA,
 				    GET_RXDP_CONFIG_OUT_PAD_HOST_DMA) == 0) {
 		/* RX DMA end padding is disabled */
@@ -514,7 +520,7 @@ efx_mcdi_get_rxdp_config(
 			break;
 		default:
 			rc = ENOTSUP;
-			goto fail2;
+			goto fail3;
 		}
 	}
 
@@ -522,6 +528,8 @@ efx_mcdi_get_rxdp_config(
 
 	return (0);
 
+fail3:
+	EFSYS_PROBE(fail3);
 fail2:
 	EFSYS_PROBE(fail2);
 fail1: