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path: root/kernel/drivers/tty/synclinkmp.c
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Diffstat (limited to 'kernel/drivers/tty/synclinkmp.c')
-rw-r--r--kernel/drivers/tty/synclinkmp.c26
1 files changed, 10 insertions, 16 deletions
diff --git a/kernel/drivers/tty/synclinkmp.c b/kernel/drivers/tty/synclinkmp.c
index c3f90910f..fb00a06df 100644
--- a/kernel/drivers/tty/synclinkmp.c
+++ b/kernel/drivers/tty/synclinkmp.c
@@ -752,15 +752,6 @@ static int open(struct tty_struct *tty, struct file *filp)
printk("%s(%d):%s open(), old ref count = %d\n",
__FILE__,__LINE__,tty->driver->name, info->port.count);
- /* If port is closing, signal caller to try again */
- if (info->port.flags & ASYNC_CLOSING){
- wait_event_interruptible_tty(tty, info->port.close_wait,
- !(info->port.flags & ASYNC_CLOSING));
- retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
- -EAGAIN : -ERESTARTSYS);
- goto cleanup;
- }
-
info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
spin_lock_irqsave(&info->netlock, flags);
@@ -1655,7 +1646,8 @@ static int hdlcdev_open(struct net_device *dev)
printk("%s:hdlcdev_open(%s)\n",__FILE__,dev->name);
/* generic HDLC layer open processing */
- if ((rc = hdlc_open(dev)))
+ rc = hdlc_open(dev);
+ if (rc)
return rc;
/* arbitrate between network and tty opens */
@@ -1922,7 +1914,8 @@ static int hdlcdev_init(SLMP_INFO *info)
/* allocate and initialize network and HDLC layer objects */
- if (!(dev = alloc_hdlcdev(info))) {
+ dev = alloc_hdlcdev(info);
+ if (!dev) {
printk(KERN_ERR "%s:hdlc device allocation failure\n",__FILE__);
return -ENOMEM;
}
@@ -1943,7 +1936,8 @@ static int hdlcdev_init(SLMP_INFO *info)
hdlc->xmit = hdlcdev_xmit;
/* register objects with HDLC layer */
- if ((rc = register_hdlc_device(dev))) {
+ rc = register_hdlc_device(dev);
+ if (rc) {
printk(KERN_WARNING "%s:unable to register hdlc device\n",__FILE__);
free_netdev(dev);
return rc;
@@ -3338,9 +3332,8 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
}
cd = tty_port_carrier_raised(port);
-
- if (!(port->flags & ASYNC_CLOSING) && (do_clocal || cd))
- break;
+ if (do_clocal || cd)
+ break;
if (signal_pending(current)) {
retval = -ERESTARTSYS;
@@ -3920,7 +3913,8 @@ static void synclinkmp_cleanup(void)
printk("Unloading %s %s\n", driver_name, driver_version);
if (serial_driver) {
- if ((rc = tty_unregister_driver(serial_driver)))
+ rc = tty_unregister_driver(serial_driver);
+ if (rc)
printk("%s(%d) failed to unregister tty driver err=%d\n",
__FILE__,__LINE__,rc);
put_tty_driver(serial_driver);