qed: fix kzalloc-simple.cocci warnings

Orabug: 25477939

drivers/net/ethernet/qlogic/qed/qed_dcbx.c:1230:13-20: WARNING: kzalloc should be used for dcbx_info, instead of kmalloc/memset
drivers/net/ethernet/qlogic/qed/qed_dcbx.c:1192:13-20: WARNING: kzalloc should be used for dcbx_info, instead of kmalloc/memset

 Use kzalloc rather than kmalloc followed by memset with 0

 This considers some simple cases that are common and easy to validate
 Note in particular that there are no ...s in the rule, so all of the
 matched code has to be contiguous

Generated by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci

CC: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 561ed23331dfefea4c8eec616463ee4d0c8fa4b7)
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 508afae8dbd30cddbe55529ad4e8b99e3f924e42..38624021d12a47bca923ced73cfb75da4b66a84d 100644 (file)
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
@@ -1189,13 +1189,12 @@ int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
                return 0;
        }
 
-       dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_KERNEL);
+       dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
        if (!dcbx_info) {
                DP_ERR(p_hwfn, "Failed to allocate struct qed_dcbx_info\n");
                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);
@@ -1227,13 +1226,12 @@ static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
 {
        struct qed_dcbx_get *dcbx_info;
 
-       dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_KERNEL);
+       dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
        if (!dcbx_info) {
                DP_ERR(hwfn->cdev, "Failed to allocate memory for dcbx_info\n");
                return NULL;
        }
 
-       memset(dcbx_info, 0, sizeof(*dcbx_info));
        if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
                kfree(dcbx_info);
                return NULL;