diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/cyclades.c | 45 |
1 files changed, 16 insertions, 29 deletions
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c index 74627950f901..47cd7b8d4d97 100644 --- a/drivers/char/cyclades.c +++ b/drivers/char/cyclades.c @@ -1296,7 +1296,7 @@ static int cy_startup(struct cyclades_port *info, struct tty_struct *tty) unsigned long flags; int retval = 0; void __iomem *base_addr; - int chip, channel, index; + int channel; unsigned long page; card = info->card; @@ -1308,14 +1308,11 @@ static int cy_startup(struct cyclades_port *info, struct tty_struct *tty) spin_lock_irqsave(&card->card_lock, flags); - if (info->port.flags & ASYNC_INITIALIZED) { - free_page(page); + if (info->port.flags & ASYNC_INITIALIZED) goto errout; - } if (!info->type) { set_bit(TTY_IO_ERROR, &tty->flags); - free_page(page); goto errout; } @@ -1329,9 +1326,9 @@ static int cy_startup(struct cyclades_port *info, struct tty_struct *tty) cy_set_line_char(info, tty); if (!cy_is_Z(card)) { - chip = channel >> 2; + int chip = channel >> 2; + int index = card->bus_index; channel &= 0x03; - index = card->bus_index; base_addr = card->base_addr + (cy_chip_offset[chip] << index); #ifdef CY_DEBUG_OPEN @@ -1354,18 +1351,6 @@ static int cy_startup(struct cyclades_port *info, struct tty_struct *tty) cy_writeb(base_addr + (CySRER << index), readb(base_addr + (CySRER << index)) | CyRxData); - info->port.flags |= ASYNC_INITIALIZED; - - clear_bit(TTY_IO_ERROR, &tty->flags); - info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; - info->breakon = info->breakoff = 0; - memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats)); - info->idle_stats.in_use = - info->idle_stats.recv_idle = - info->idle_stats.xmit_idle = jiffies; - - spin_unlock_irqrestore(&card->card_lock, flags); - } else { struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl; @@ -1416,18 +1401,19 @@ static int cy_startup(struct cyclades_port *info, struct tty_struct *tty) tty_port_raise_dtr_rts(&info->port); /* enable send, recv, modem !!! */ + } - info->port.flags |= ASYNC_INITIALIZED; - clear_bit(TTY_IO_ERROR, &tty->flags); - info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; - info->breakon = info->breakoff = 0; - memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats)); - info->idle_stats.in_use = - info->idle_stats.recv_idle = - info->idle_stats.xmit_idle = jiffies; + info->port.flags |= ASYNC_INITIALIZED; - spin_unlock_irqrestore(&card->card_lock, flags); - } + clear_bit(TTY_IO_ERROR, &tty->flags); + info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; + info->breakon = info->breakoff = 0; + memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats)); + info->idle_stats.in_use = + info->idle_stats.recv_idle = + info->idle_stats.xmit_idle = jiffies; + + spin_unlock_irqrestore(&card->card_lock, flags); #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc startup done\n"); @@ -1436,6 +1422,7 @@ static int cy_startup(struct cyclades_port *info, struct tty_struct *tty) errout: spin_unlock_irqrestore(&card->card_lock, flags); + free_page(page); return retval; } /* startup */ |