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authorOliver Neukum <oliver@neukum.org>2009-04-20 17:28:53 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2009-04-23 14:15:29 -0700
commit2400a2bfbd0e912193fe3b077f492d4980141813 (patch)
treee2e1bcc34252c14662c80df15c44703ead9d589c /drivers/usb/serial/empeg.c
parent212b8f0c3f5a2280bfa1d6ab13a6fe98552becaa (diff)
downloadlinux-2400a2bfbd0e912193fe3b077f492d4980141813.tar.gz
USB: removal of tty->low_latency hack dating back to the old serial code
This removes tty->low_latency from all USB serial drivers that push
data into the tty layer at hard interrupt context. It's no longer needed
and actually harmful.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>


Diffstat (limited to 'drivers/usb/serial/empeg.c')
-rw-r--r--drivers/usb/serial/empeg.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c
index 8a69cce40b6d..c709ec474a80 100644
--- a/drivers/usb/serial/empeg.c
+++ b/drivers/usb/serial/empeg.c
@@ -478,12 +478,6 @@ static void empeg_set_termios(struct tty_struct *tty,
 	termios->c_cflag
 		|= CS8;		/* character size 8 bits */
 
-	/*
-	 * Force low_latency on; otherwise the pushes are scheduled;
-	 * this is bad as it opens up the possibility of dropping bytes
-	 * on the floor.  We don't want to drop bytes on the floor. :)
-	 */
-	tty->low_latency = 1;
 	tty_encode_baud_rate(tty, 115200, 115200);
 }