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authorGustavo A. R. Silva <gustavoars@kernel.org>2020-06-19 12:37:15 -0500
committerDavid S. Miller <davem@davemloft.net>2020-06-19 13:42:08 -0700
commitf362b70bd67add130ae4321306b62237356889a4 (patch)
treeaf25ce1b2fe60bbd61b86986c8f3f27bae519c9a /drivers/net/ethernet/ti/am65-cpsw-qos.c
parentcc7a21b6fbd945f8d8f61422ccd27203c1fafeb7 (diff)
ethernet: ti: am65-cpsw-qos: Use struct_size() in devm_kzalloc()
Make use of the struct_size() helper instead of an open-coded version in order to avoid any potential type mistakes. Also, remove unnecessary variable _size_. This code was detected with the help of Coccinelle and, audited and fixed manually. Addresses-KSPP-ID: https://github.com/KSPP/linux/issues/83 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ti/am65-cpsw-qos.c')
-rw-r--r--drivers/net/ethernet/ti/am65-cpsw-qos.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/net/ethernet/ti/am65-cpsw-qos.c b/drivers/net/ethernet/ti/am65-cpsw-qos.c
index 32eac04468bb..3bdd4dbcd2ff 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-qos.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-qos.c
@@ -505,7 +505,6 @@ static int am65_cpsw_set_taprio(struct net_device *ndev, void *type_data)
struct am65_cpsw_port *port = am65_ndev_to_port(ndev);
struct tc_taprio_qopt_offload *taprio = type_data;
struct am65_cpsw_est *est_new;
- size_t size;
int ret = 0;
if (taprio->cycle_time_extension) {
@@ -513,10 +512,9 @@ static int am65_cpsw_set_taprio(struct net_device *ndev, void *type_data)
return -EOPNOTSUPP;
}
- size = sizeof(struct tc_taprio_sched_entry) * taprio->num_entries +
- sizeof(struct am65_cpsw_est);
-
- est_new = devm_kzalloc(&ndev->dev, size, GFP_KERNEL);
+ est_new = devm_kzalloc(&ndev->dev,
+ struct_size(est_new, taprio.entries, taprio->num_entries),
+ GFP_KERNEL);
if (!est_new)
return -ENOMEM;