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staging: vt6656: main_usb.c Replace DEVICE_PARAM TxDescriptors0

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Replace with vnt_tx_buffers using module_param_named and
MODULE_PARM_DESC

Check user doe not set tx_buffer beyond the define limits of driver

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Malcolm Priestley 2014-07-16 22:22:07 +01:00 committed by Greg Kroah-Hartman
parent 2f020ebcda
commit 3220e3a43d
1 changed files with 9 additions and 2 deletions
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11
drivers/staging/vt6656/main_usb.c
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@ -83,7 +83,10 @@ module_param_named(rx_buffers, vnt_rx_buffers, int, 0644);
MODULE_PARM_DESC(rx_buffers, "Number of receive usb rx buffers");
#define TX_DESC_DEF0 64
DEVICE_PARAM(TxDescriptors0, "Number of transmit usb desc buffer");
static int vnt_tx_buffers = TX_DESC_DEF0;
module_param_named(tx_buffers, vnt_rx_buffers, int, 0644);
MODULE_PARM_DESC(tx_buffers, "Number of receive usb tx buffers");
#define CHANNEL_DEF 6
DEVICE_PARAM(Channel, "Channel number");
@ -204,7 +207,11 @@ static void usb_device_reset(struct vnt_private *pDevice);
static void device_set_options(struct vnt_private *priv)
{
priv->cbTD = TX_DESC_DEF0;
/* Set number of TX buffers */
if (vnt_tx_buffers < CB_MIN_TX_DESC || vnt_tx_buffers > CB_MAX_TX_DESC)
priv->cbTD = TX_DESC_DEF0;
else
priv->cbTD = vnt_tx_buffers;
/* Set number of RX buffers */
if (vnt_rx_buffers < CB_MIN_RX_DESC || vnt_rx_buffers > CB_MAX_RX_DESC)