From: Himangi Saraogi <himangi774@gmail.com>
Date: Fri, 11 Jul 2014 19:42:43 +0000 (+0530)
Subject: thunderbolt: Use kcalloc
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2a211f320ee3d86835b40efd2948642482d3c933;p=linux.git

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>
Acked-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index ce72f31fe0d84..c68fe1222c16a 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;