qed: Zero-out the buffer paased to dcbx_query() API

Orabug: 25477939

qed_dcbx_query_params() implementation populate the values to input
buffer based on the dcbx mode and, the current negotiated state/params,
the caller of this API need to memset the buffer to zero.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 15c6de2c65048d45484e396194ba2598618d4cb4)
Signed-off-by: Brian Maly <brian.maly@oracle.com>

diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
index e8bd93e31d8efd4f5828cf37c2db98dbf737ae20..82ca36bf3df9995b7972bf0d2ca74ea4b62e19a0 100644 (file)
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
@@ -1190,6 +1190,7 @@ int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
        if (!dcbx_info) 
                return -ENOMEM;
 
+       memset(dcbx_info, 0, sizeof(*dcbx_info));
        rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
        if (rc) {
                kfree(dcbx_info);
@@ -1225,6 +1226,7 @@ static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
        if (!dcbx_info) 
                return NULL;
 
+       memset(dcbx_info, 0, sizeof(*dcbx_info));
        if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
                kfree(dcbx_info);
                return NULL;