hvc_console: Remove tty->low_latency

[linux-2.6-omap-h63xx.git] / drivers / char / hvc_console.c

diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index fb57f67bb427fb86e23e9b6c723ba3fcae467ea9..94e7e3c8c05ad3f0720aaae3d6df588eebd2d50b 100644 (file)
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -318,7 +318,6 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
        } /* else count == 0 */
 
        tty->driver_data = hp;
-       tty->low_latency = 1; /* Makes flushes to ldisc synchronous. */
 
        hp->tty = tty;
 
@@ -529,7 +528,7 @@ static void hvc_set_winsz(struct work_struct *work)
        tty = tty_kref_get(hp->tty);
        spin_unlock_irqrestore(&hp->lock, hvc_flags);
 
-       tty_do_resize(tty, tty, &ws);
+       tty_do_resize(tty, &ws);
        tty_kref_put(tty);
 }
 
@@ -695,6 +694,7 @@ void hvc_resize(struct hvc_struct *hp, struct winsize ws)
        hp->ws = ws;
        schedule_work(&hp->tty_resize);
 }
+EXPORT_SYMBOL_GPL(hvc_resize);
 
 /*
  * This kthread is either polling or interrupt driven.  This is determined by
@@ -763,13 +763,11 @@ struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int data,
                        return ERR_PTR(err);
        }
 
-       hp = kmalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
+       hp = kzalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
                        GFP_KERNEL);
        if (!hp)
                return ERR_PTR(-ENOMEM);
 
-       memset(hp, 0x00, sizeof(*hp));
-
        hp->vtermno = vtermno;
        hp->data = data;
        hp->ops = ops;
@@ -875,8 +873,11 @@ static int hvc_init(void)
                goto stop_thread;
        }
 
-       /* FIXME: This mb() seems completely random.  Remove it. */
-       mb();
+       /*
+        * Make sure tty is fully registered before allowing it to be
+        * found by hvc_console_device.
+        */
+       smp_mb();
        hvc_driver = drv;
        return 0;