summaryrefslogtreecommitdiffstats
path: root/kernel/drivers/tty/synclink.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/drivers/tty/synclink.c')
-rw-r--r--kernel/drivers/tty/synclink.c35
1 files changed, 15 insertions, 20 deletions
diff --git a/kernel/drivers/tty/synclink.c b/kernel/drivers/tty/synclink.c
index b7991707f..6188059fd 100644
--- a/kernel/drivers/tty/synclink.c
+++ b/kernel/drivers/tty/synclink.c
@@ -3314,12 +3314,11 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
-EAGAIN : -ERESTARTSYS;
break;
}
-
+
dcd = tty_port_carrier_raised(&info->port);
-
- if (!(port->flags & ASYNC_CLOSING) && (do_clocal || dcd))
- break;
-
+ if (do_clocal || dcd)
+ break;
+
if (signal_pending(current)) {
retval = -ERESTARTSYS;
break;
@@ -3398,15 +3397,6 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
printk("%s(%d):mgsl_open(%s), 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);
@@ -4410,7 +4400,8 @@ static void synclink_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);
@@ -6634,7 +6625,7 @@ static bool mgsl_get_rx_frame(struct mgsl_struct *info)
unsigned char *ptmp = info->intermediate_rxbuffer;
if ( !(status & RXSTATUS_CRC_ERROR))
- info->icount.rxok++;
+ info->icount.rxok++;
while(copy_count) {
int partial_count;
@@ -7751,7 +7742,8 @@ 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 */
@@ -8018,7 +8010,8 @@ static int hdlcdev_init(struct mgsl_struct *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;
}
@@ -8039,7 +8032,8 @@ static int hdlcdev_init(struct mgsl_struct *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;
@@ -8075,7 +8069,8 @@ static int synclink_init_one (struct pci_dev *dev,
return -EIO;
}
- if (!(info = mgsl_allocate_device())) {
+ info = mgsl_allocate_device();
+ if (!info) {
printk("can't allocate device instance data.\n");
return -EIO;
}