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can: mscan: remove obsolete variable open_time

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The variable open_time in the struct mscan_priv was used to protect
mscan_do_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 ab48b03ec9
commit 49ed59b72c
2 changed files with 0 additions and 9 deletions
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8
drivers/net/can/mscan/mscan.c
View File

@ -517,12 +517,8 @@ static irqreturn_t mscan_isr(int irq, void *dev_id)
static int mscan_do_set_mode(struct net_device *dev, enum can_mode mode)
{
struct mscan_priv *priv = netdev_priv(dev);
int ret = 0;
if (!priv->open_time)
return -EINVAL;
switch (mode) {
case CAN_MODE_START:
ret = mscan_restart(dev);
@ -590,8 +586,6 @@ static int mscan_open(struct net_device *dev)
goto exit_napi_disable;
}
priv->open_time = jiffies;
if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
setbits8(&regs->canctl1, MSCAN_LISTEN);
else
@ -606,7 +600,6 @@ static int mscan_open(struct net_device *dev)
return 0;
exit_free_irq:
priv->open_time = 0;
free_irq(dev->irq, dev);
exit_napi_disable:
napi_disable(&priv->napi);
@ -627,7 +620,6 @@ static int mscan_close(struct net_device *dev)
mscan_set_mode(dev, MSCAN_INIT_MODE);
close_candev(dev);
free_irq(dev->irq, dev);
priv->open_time = 0;
return 0;
}

1
drivers/net/can/mscan/mscan.h
View File

@ -281,7 +281,6 @@ struct tx_queue_entry {
struct mscan_priv {
struct can_priv can; /* must be the first member */
unsigned int type; /* MSCAN type variants */
long open_time;
unsigned long flags;
void __iomem *reg_base; /* ioremap'ed address to registers */
u8 shadow_statflg;