From 365e02237b164701897244aab7412b21c5e622af Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Sat, 30 Sep 2006 23:28:11 -0700 Subject: [PATCH] [PATCH] Char: specialix, kill unneeded page alloc The driver is allocating a page but doesn't actually use it for anything. (History from the old ->write method before Linus cleaned it up) Signed-off-by: Jiri Slaby Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/specialix.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c index c0ef0f0e5800..f52c7c31badf 100644 --- a/drivers/char/specialix.c +++ b/drivers/char/specialix.c @@ -182,7 +182,6 @@ static int sx_poll = HZ; #define RS_EVENT_WRITE_WAKEUP 0 static struct tty_driver *specialix_driver; -static unsigned char * tmp_buf; static unsigned long baud_table[] = { 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800, @@ -1674,7 +1673,7 @@ static int sx_write(struct tty_struct * tty, bp = port_Board(port); - if (!port->xmit_buf || !tmp_buf) { + if (!port->xmit_buf) { func_exit(); return 0; } @@ -2398,12 +2397,6 @@ static int sx_init_drivers(void) return 1; } - if (!(tmp_buf = (unsigned char *) get_zeroed_page(GFP_KERNEL))) { - printk(KERN_ERR "sx: Couldn't get free page.\n"); - put_tty_driver(specialix_driver); - func_exit(); - return 1; - } specialix_driver->owner = THIS_MODULE; specialix_driver->name = "ttyW"; specialix_driver->major = SPECIALIX_NORMAL_MAJOR; @@ -2417,7 +2410,6 @@ static int sx_init_drivers(void) if ((error = tty_register_driver(specialix_driver))) { put_tty_driver(specialix_driver); - free_page((unsigned long)tmp_buf); printk(KERN_ERR "sx: Couldn't register specialix IO8+ driver, error = %d\n", error); func_exit(); @@ -2443,7 +2435,6 @@ static void sx_release_drivers(void) { func_enter(); - free_page((unsigned long)tmp_buf); tty_unregister_driver(specialix_driver); put_tty_driver(specialix_driver); func_exit(); -- GitLab