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path: root/drivers/char/hvc_console.c
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Diffstat (limited to 'drivers/char/hvc_console.c')
-rw-r--r--drivers/char/hvc_console.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index 5a8a4c2..94e7e3c 100644
--- 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;
@@ -764,13 +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;
@@ -876,8 +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;
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