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TTY: simserial, remove tmp_buf

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It is totally unused.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2012-03-05 14:52:29 +01:00 committed by Greg Kroah-Hartman
parent fd2d7a6e60
commit d88405d44f
1 changed files with 2 additions and 14 deletions
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16
arch/ia64/hp/sim/simserial.c
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@ -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
*/