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can: ems_usb: remove obsolete variable open_time 

The variable open_time in the struct ems_usb was used to protect
ems_usb_set_mode() only to be called, if the interface is up. Now the CAN
device infrastructure takes care of this.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Marc Kleine-Budde 2012-07-20 22:30:40 +02:00
parent b2d0bf711f
commit 4480c00804
1 changed files with 0 additions and 7 deletions
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7
drivers/net/can/usb/ems_usb.c
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@ -245,7 +245,6 @@ struct ems_tx_urb_context {
struct ems_usb { struct ems_usb {
struct can_priv can; /* must be the first member */ struct can_priv can; /* must be the first member */
int open_time;
struct sk_buff *echo_skb[MAX_TX_URBS]; struct sk_buff *echo_skb[MAX_TX_URBS];
@ -728,7 +727,6 @@ static int ems_usb_open(struct net_device *netdev)
return err; return err;
} }
dev->open_time = jiffies;
netif_start_queue(netdev); netif_start_queue(netdev);
@ -878,8 +876,6 @@ static int ems_usb_close(struct net_device *netdev)
close_candev(netdev); close_candev(netdev);
dev->open_time = 0;
return 0; return 0;
} }
@ -905,9 +901,6 @@ static int ems_usb_set_mode(struct net_device *netdev, enum can_mode mode)
{ {
struct ems_usb *dev = netdev_priv(netdev); struct ems_usb *dev = netdev_priv(netdev);
if (!dev->open_time)
return -EINVAL;
switch (mode) { switch (mode) {
case CAN_MODE_START: case CAN_MODE_START:
if (ems_usb_write_mode(dev, SJA1000_MOD_NORMAL)) if (ems_usb_write_mode(dev, SJA1000_MOD_NORMAL))