[PATCH 5.17 443/772] hinic: Avoid some over memory allocation

Greg Kroah-Hartman
2022-06-07T21:17:58Z

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 15d221d0c345b76947911a3ac91897ffe2f1cc4e ]

'prod_idx' (atomic_t) is larger than 'shadow_idx' (u16), so some memory is
over-allocated.

Fixes: b15a9f37be2b ("net-next/hinic: Add wq")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/huawei/hinic/hinic_hw_wq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_wq.c b/drivers/net/ethernet/huawei/hinic/hinic_hw_wq.c
index f7dc7d825f63..4daf6bf291ec 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_wq.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_wq.c
@@ -386,7 +386,7 @@ static int alloc_wqes_shadow(struct hinic_wq *wq)
return -ENOMEM;

wq->shadow_idx = devm_kcalloc(&pdev->dev, wq->num_q_pages,
- sizeof(wq->prod_idx), GFP_KERNEL);
+ sizeof(*wq->shadow_idx), GFP_KERNEL);
if (!wq->shadow_idx)
goto err_shadow_idx;

--
2.35.1