linux-kernel - [PATCH 14/20] drivers/net/vmxnet3: Use kzalloc

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Message-ID: <Pine.LNX.4.64.1005132204040.6282@ask.diku.dk>
Date:	Thu, 13 May 2010 22:05:40 +0200 (CEST)
From:	Julia Lawall <julia@...u.dk>
To:	Shreyas Bhatewara <sbhatewara@...are.com>,
	"VMware, Inc." <pv-drivers@...are.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH 14/20] drivers/net/vmxnet3: Use kzalloc

From: Julia Lawall <julia@...u.dk>

Use kzalloc rather than the combination of kmalloc and memset.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,size,flags;
statement S;
@@

-x = kmalloc(size,flags);
+x = kzalloc(size,flags);
 if (x == NULL) S
-memset(x, 0, size);
// </smpl>

Signed-off-by: Julia Lawall <julia@...u.dk>

---
 drivers/net/vmxnet3/vmxnet3_drv.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff -u -p a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -1369,13 +1369,12 @@ vmxnet3_rq_create(struct vmxnet3_rx_queu
 
 	sz = sizeof(struct vmxnet3_rx_buf_info) * (rq->rx_ring[0].size +
 						   rq->rx_ring[1].size);
-	bi = kmalloc(sz, GFP_KERNEL);
+	bi = kzalloc(sz, GFP_KERNEL);
 	if (!bi) {
 		printk(KERN_ERR "%s: failed to allocate rx bufinfo\n",
 		       adapter->netdev->name);
 		goto err;
 	}
-	memset(bi, 0, sz);
 	rq->buf_info[0] = bi;
 	rq->buf_info[1] = bi + rq->rx_ring[0].size;
 
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