[PATCH][next] net: hinic: Use devm_kcalloc() instead of devm_kzalloc()

[PATCH][next] net: hinic: Use devm_kcalloc() instead of devm_kzalloc()

[Gustavo A. R. Silva]

Use 2-factor multiplication argument form devm_kcalloc() instead
of devm_kzalloc().

Link: https://github.com/KSPP/linux/issues/162
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
 drivers/net/ethernet/huawei/hinic/hinic_hw_io.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c
index a6e43d686293..c4a0ba6e183a 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c
@@ -375,31 +375,30 @@ int hinic_io_create_qps(struct hinic_func_to_io *func_to_io,
 {
 	struct hinic_hwif *hwif = func_to_io->hwif;
 	struct pci_dev *pdev = hwif->pdev;
-	size_t qps_size, wq_size, db_size;
 	void *ci_addr_base;
 	int i, j, err;
 
-	qps_size = num_qps * sizeof(*func_to_io->qps);
-	func_to_io->qps = devm_kzalloc(&pdev->dev, qps_size, GFP_KERNEL);
+	func_to_io->qps = devm_kcalloc(&pdev->dev, num_qps,
+				       sizeof(*func_to_io->qps), GFP_KERNEL);
 	if (!func_to_io->qps)
 		return -ENOMEM;
 
-	wq_size = num_qps * sizeof(*func_to_io->sq_wq);
-	func_to_io->sq_wq = devm_kzalloc(&pdev->dev, wq_size, GFP_KERNEL);
+	func_to_io->sq_wq = devm_kcalloc(&pdev->dev, num_qps,
+					 sizeof(*func_to_io->sq_wq), GFP_KERNEL);
 	if (!func_to_io->sq_wq) {
 		err = -ENOMEM;
 		goto err_sq_wq;
 	}
 
-	wq_size = num_qps * sizeof(*func_to_io->rq_wq);
-	func_to_io->rq_wq = devm_kzalloc(&pdev->dev, wq_size, GFP_KERNEL);
+	func_to_io->rq_wq = devm_kcalloc(&pdev->dev, num_qps,
+					 sizeof(*func_to_io->rq_wq), GFP_KERNEL);
 	if (!func_to_io->rq_wq) {
 		err = -ENOMEM;
 		goto err_rq_wq;
 	}
 
-	db_size = num_qps * sizeof(*func_to_io->sq_db);
-	func_to_io->sq_db = devm_kzalloc(&pdev->dev, db_size, GFP_KERNEL);
+	func_to_io->sq_db = devm_kcalloc(&pdev->dev, num_qps,
+					 sizeof(*func_to_io->sq_db), GFP_KERNEL);
 	if (!func_to_io->sq_db) {
 		err = -ENOMEM;
 		goto err_sq_db;
-- 
2.27.0

Re: [PATCH][next] net: hinic: Use devm_kcalloc() instead of devm_kzalloc()

[Kees Cook]

On Tue, Dec 07, 2021 at 06:35:27PM -0600, Gustavo A. R. Silva wrote:
> Use 2-factor multiplication argument form devm_kcalloc() instead
> of devm_kzalloc().
> 
> Link: https://github.com/KSPP/linux/issues/162
> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

Reviewed-by: Kees Cook <keescook@chromium.org>

-- 
Kees Cook