From d88405d44fd30fcbe77a9db540afd8823b30afdc Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 5 Mar 2012 14:52:29 +0100 Subject: [PATCH] TTY: simserial, remove tmp_buf It is totally unused. Signed-off-by: Jiri Slaby Cc: Tony Luck Cc: Fenghua Yu Signed-off-by: Greg Kroah-Hartman --- arch/ia64/hp/sim/simserial.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index 64ab004b4763..45df0f427864 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -55,8 +55,6 @@ struct tty_driver *hp_simserial_driver; static struct console *console; -static unsigned char *tmp_buf; - extern struct console *console_drivers; /* from kernel/printk.c */ /* @@ -237,7 +235,8 @@ static int rs_write(struct tty_struct * tty, int c, ret = 0; unsigned long flags; - if (!tty || !info->xmit.buf || !tmp_buf) return 0; + if (!tty || !info->xmit.buf) + return 0; local_irq_save(flags); while (1) { @@ -618,7 +617,6 @@ static int rs_open(struct tty_struct *tty, struct file * filp) { struct serial_state *info = rs_table + tty->index; int retval; - unsigned long page; info->tport.count++; info->tport.tty = tty; @@ -630,16 +628,6 @@ static int rs_open(struct tty_struct *tty, struct file * filp) #endif tty->low_latency = (info->tport.flags & ASYNC_LOW_LATENCY) ? 1 : 0; - if (!tmp_buf) { - page = get_zeroed_page(GFP_KERNEL); - if (!page) - return -ENOMEM; - if (tmp_buf) - free_page(page); - else - tmp_buf = (unsigned char *) page; - } - /* * If the port is the middle of closing, bail out now */ -- 2.20.1