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Subject[PATCH] thunderbolt: Use kcalloc
The advantage of kcalloc is, that will prevent integer overflows
which could result from the multiplication of number of elements
and size and it is also a bit nicer to read.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
---
A patch on top of my char-misc tree as the kzalloc version is
already applied there.

drivers/thunderbolt/nhi.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index ce72f31..c68fe12 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -569,12 +569,10 @@ static int nhi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
nhi->hop_count);
INIT_WORK(&nhi->interrupt_work, nhi_interrupt_work);

- nhi->tx_rings = devm_kzalloc(&pdev->dev,
- nhi->hop_count * sizeof(*nhi->tx_rings),
- GFP_KERNEL);
- nhi->rx_rings = devm_kzalloc(&pdev->dev,
- nhi->hop_count * sizeof(*nhi->rx_rings),
- GFP_KERNEL);
+ nhi->tx_rings = devm_kcalloc(&pdev->dev, nhi->hop_count,
+ sizeof(*nhi->tx_rings), GFP_KERNEL);
+ nhi->rx_rings = devm_kcalloc(&pdev->dev, nhi->hop_count,
+ sizeof(*nhi->rx_rings), GFP_KERNEL);
if (!nhi->tx_rings || !nhi->rx_rings)
return -ENOMEM;

--
1.9.1


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