X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fchar%2Fn_hdlc.c;h=9f54733f16236e9e5618c91967d1d1434ef824ef;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=b3dbff1cf967b504fd8048d110c1dd2927692038;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/drivers/char/n_hdlc.c b/drivers/char/n_hdlc.c
index b3dbff1cf..9f54733f1 100644
--- a/drivers/char/n_hdlc.c
+++ b/drivers/char/n_hdlc.c
@@ -191,7 +191,6 @@ static unsigned int n_hdlc_tty_poll(struct tty_struct *tty, struct file *filp,
 				    poll_table *wait);
 static int n_hdlc_tty_open(struct tty_struct *tty);
 static void n_hdlc_tty_close(struct tty_struct *tty);
-static int n_hdlc_tty_room(struct tty_struct *tty);
 static void n_hdlc_tty_receive(struct tty_struct *tty, const __u8 *cp,
 			       char *fp, int count);
 static void n_hdlc_tty_wakeup(struct tty_struct *tty);
@@ -212,7 +211,6 @@ static struct tty_ldisc n_hdlc_ldisc = {
 	.ioctl		= n_hdlc_tty_ioctl,
 	.poll		= n_hdlc_tty_poll,
 	.receive_buf	= n_hdlc_tty_receive,
-	.receive_room	= n_hdlc_tty_room,
 	.write_wakeup	= n_hdlc_tty_wakeup,
 };
 
@@ -264,8 +262,7 @@ static void n_hdlc_release(struct n_hdlc *n_hdlc)
 		} else
 			break;
 	}
-	if (n_hdlc->tbuf)
-		kfree(n_hdlc->tbuf);
+	kfree(n_hdlc->tbuf);
 	kfree(n_hdlc);
 	
 }	/* end of n_hdlc_release() */
@@ -338,6 +335,7 @@ static int n_hdlc_tty_open (struct tty_struct *tty)
 		
 	tty->disc_data = n_hdlc;
 	n_hdlc->tty    = tty;
+	tty->receive_room = 65536;
 	
 #if defined(TTY_NO_WRITE_SPLIT)
 	/* change tty_io write() to not split large writes into 8K chunks */
@@ -478,22 +476,6 @@ static void n_hdlc_tty_wakeup(struct tty_struct *tty)
 		
 }	/* end of n_hdlc_tty_wakeup() */
 
-/**
- * n_hdlc_tty_room - Return the amount of space left in the receiver's buffer
- * @tty	- pointer to associated tty instance data
- *
- * Callback function from tty driver. Return the amount of space left in the
- * receiver's buffer to decide if remote transmitter is to be throttled.
- */
-static int n_hdlc_tty_room(struct tty_struct *tty)
-{
-	if (debuglevel >= DEBUG_LEVEL_INFO)	
-		printk("%s(%d)n_hdlc_tty_room() called\n",__FILE__,__LINE__);
-	/* always return a larger number to prevent */
-	/* throttling of remote transmitter. */
-	return 65536;
-}	/* end of n_hdlc_tty_root() */
-
 /**
  * n_hdlc_tty_receive - Called by tty driver when receive data is available
  * @tty	- pointer to tty instance data
@@ -563,7 +545,7 @@ static void n_hdlc_tty_receive(struct tty_struct *tty, const __u8 *data,
 }	/* end of n_hdlc_tty_receive() */
 
 /**
- * n_hdlc_tty_read - Called to retreive one frame of data (if available)
+ * n_hdlc_tty_read - Called to retrieve one frame of data (if available)
  * @tty - pointer to tty instance data
  * @file - pointer to open file object
  * @buf - pointer to returned data buffer
@@ -960,7 +942,7 @@ static char hdlc_unregister_fail[] __exitdata =
 static void __exit n_hdlc_exit(void)
 {
 	/* Release tty registration of line discipline */
-	int status = tty_register_ldisc(N_HDLC, NULL);
+	int status = tty_unregister_ldisc(N_HDLC);
 
 	if (status)
 		printk(hdlc_unregister_fail, status);