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staging: vt6656: main_usb.c Replace DEVICE_PARAM RxDescriptors0 

Replace with vnt_rx_buffers using module_param_named and
MODULE_PARM_DESC

Check user doe not set rx_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 22:22:06 +01:00 committed by Greg Kroah-Hartman
parent bccf114046
commit 2f020ebcda
1 changed files with 10 additions and 2 deletions
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12
drivers/staging/vt6656/main_usb.c
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@ -78,7 +78,9 @@ MODULE_DESCRIPTION(DEVICE_FULL_DRV_NAM);
MODULE_PARM_DESC(N, D)
#define RX_DESC_DEF0 64
DEVICE_PARAM(RxDescriptors0, "Number of receive usb desc buffer");
static int vnt_rx_buffers = RX_DESC_DEF0;
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");
@ -203,7 +205,13 @@ static void usb_device_reset(struct vnt_private *pDevice);
static void device_set_options(struct vnt_private *priv)
{
priv->cbTD = TX_DESC_DEF0;
priv->cbRD = RX_DESC_DEF0;
/* Set number of RX buffers */
if (vnt_rx_buffers < CB_MIN_RX_DESC || vnt_rx_buffers > CB_MAX_RX_DESC)
priv->cbRD = RX_DESC_DEF0;
else
priv->cbRD = vnt_rx_buffers;
priv->byShortRetryLimit = SHORT_RETRY_DEF;
priv->byLongRetryLimit = LONG_RETRY_DEF;
priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;