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Date: Sat, 15 May 2010 23:19:15 +0200 (CEST) From: Julia Lawall <julia@...u.dk> To: Marcel Holtmann <marcel@...tmann.org>, linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org Subject: [PATCH 20/37] drivers/bluetooth: Use kmemdup From: Julia Lawall <julia@...u.dk> Use kmemdup when some other buffer is immediately copied into the allocated region. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; statement S; @@ - to = \(kmalloc\|kzalloc\)(size,flag); + to = kmemdup(from,size,flag); if (to==NULL || ...) S - memcpy(to, from, size); // </smpl> Signed-off-by: Julia Lawall <julia@...u.dk> --- drivers/bluetooth/bcm203x.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff -u -p a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c --- a/drivers/bluetooth/bcm203x.c +++ b/drivers/bluetooth/bcm203x.c @@ -224,7 +224,7 @@ static int bcm203x_probe(struct usb_inte BT_DBG("firmware data %p size %zu", firmware->data, firmware->size); - data->fw_data = kmalloc(firmware->size, GFP_KERNEL); + data->fw_data = kmemdup(firmware->data, firmware->size, GFP_KERNEL); if (!data->fw_data) { BT_ERR("Can't allocate memory for firmware image"); release_firmware(firmware); @@ -234,7 +234,6 @@ static int bcm203x_probe(struct usb_inte return -ENOMEM; } - memcpy(data->fw_data, firmware->data, firmware->size); data->fw_size = firmware->size; data->fw_sent = 0; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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