From 5ee283c063a236b19e4582c675a2d8d615d5809c Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 15 May 2010 23:19:15 +0200 Subject: [PATCH] Bluetooth: Use kmemdup for drivers 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/) // @@ 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); // Signed-off-by: Julia Lawall Acked-by: Gustavo F. Padovan Signed-off-by: Marcel Holtmann --- drivers/bluetooth/bcm203x.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c index b0c84c19f442..8b1b643a519b 100644 --- a/drivers/bluetooth/bcm203x.c +++ b/drivers/bluetooth/bcm203x.c @@ -224,7 +224,7 @@ static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id 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_interface *intf, const struct usb_device_id return -ENOMEM; } - memcpy(data->fw_data, firmware->data, firmware->size); data->fw_size = firmware->size; data->fw_sent = 0;