[IRDA]: irda-usb bug fixes

[sfrench/cifs-2.6.git] / drivers / net / slip.c

diff --git a/drivers/net/slip.c b/drivers/net/slip.c
index c79e0ad4ba027afd1f8807de71ea1bc0cab0e68e..b2e18d28850d6b45e27916553408ff5b23c580a9 100644 (file)
--- a/drivers/net/slip.c
+++ b/drivers/net/slip.c
@@ -74,6 +74,7 @@
 #include <linux/rtnetlink.h>
 #include <linux/if_arp.h>
 #include <linux/if_slip.h>
+#include <linux/delay.h>
 #include <linux/init.h>
 #include "slip.h"
 #ifdef CONFIG_INET
@@ -650,11 +651,6 @@ static void sl_setup(struct net_device *dev)
  ******************************************/
 
 
-static int slip_receive_room(struct tty_struct *tty)
-{
-       return 65536;  /* We can handle an infinite amount of data. :-) */
-}
-
 /*
  * Handle the 'receiver data ready' interrupt.
  * This function is called by the 'tty_io' module in the kernel when
@@ -868,10 +864,6 @@ static int slip_open(struct tty_struct *tty)
        sl->line = tty_devnum(tty);
        sl->pid = current->pid;
        
-       /* FIXME: already done before we were called - seems this can go */
-       if (tty->driver->flush_buffer)
-               tty->driver->flush_buffer(tty);
-               
        if (!test_bit(SLF_INUSE, &sl->flags)) {
                /* Perform the low-level SLIP initialization. */
                if ((err = sl_alloc_bufs(sl, SL_MTU)) != 0)
@@ -896,6 +888,7 @@ static int slip_open(struct tty_struct *tty)
 
        /* Done.  We have linked the TTY line to a channel. */
        rtnl_unlock();
+       tty->receive_room = 65536;      /* We don't flow control */
        return sl->dev->base_addr;
 
 err_free_bufs:
@@ -1328,7 +1321,6 @@ static struct tty_ldisc   sl_ldisc = {
        .close          = slip_close,
        .ioctl          = slip_ioctl,
        .receive_buf    = slip_receive_buf,
-       .receive_room   = slip_receive_room,
        .write_wakeup   = slip_write_wakeup,
 };
 
@@ -1383,10 +1375,8 @@ static void __exit slip_exit(void)
        /* First of all: check for active disciplines and hangup them.
         */
        do {
-               if (busy) {
-                       set_current_state(TASK_INTERRUPTIBLE);
-                       schedule_timeout(HZ / 10);
-               }
+               if (busy)
+                       msleep_interruptible(100);
 
                busy = 0;
                for (i = 0; i < slip_maxdev; i++) {