Remove low_latency flag setting from nozomi and mxser drivers

The kernel oopses if this flag is set.

[and neither driver should set it as they call tty_flip_buffer_push from IRQ
 paths so have always been buggy]

Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 0 insertions, 4 deletions

diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 9533f43a30bb..52d953eb30c3 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -1048,8 +1048,6 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
         if (retval)
                 return retval;
 
-        /* unmark here for very high baud rate (ex. 921600 bps) used */
-        tty->low_latency = 1;
         return 0;
 }
 
diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c
index d6102b644b55..574f1c79b6e6 100644
--- a/drivers/char/nozomi.c
+++ b/drivers/char/nozomi.c
@@ -1591,8 +1591,6 @@ static int ntty_open(struct tty_struct *tty, struct file *file)
 
         /* Enable interrupt downlink for channel */
         if (port->port.count == 1) {
-                /* FIXME: is this needed now ? */
-                tty->low_latency = 1;
                 tty->driver_data = port;
                 tty_port_tty_set(&port->port, tty);
                 DBG1("open: %d", port->token_dl);