diff options
Diffstat (limited to 'arch/um/drivers')
| -rw-r--r-- | arch/um/drivers/line.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index 83bf15a3dda..5cff6536a84 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -48,7 +48,7 @@ static int write_room(struct line *line) n = line->head - line->tail; if (n <= 0) - n = LINE_BUFSIZE + n; /* The other case */ + n += LINE_BUFSIZE; /* The other case */ return n - 1; } @@ -58,17 +58,10 @@ int line_write_room(struct tty_struct *tty) unsigned long flags; int room; - if (tty->stopped) - return 0; - spin_lock_irqsave(&line->lock, flags); room = write_room(line); spin_unlock_irqrestore(&line->lock, flags); - /*XXX: Warning to remove */ - if (0 == room) - printk(KERN_DEBUG "%s: %s: no room left in buffer\n", - __FUNCTION__,tty->name); return room; } @@ -79,8 +72,7 @@ int line_chars_in_buffer(struct tty_struct *tty) int ret; spin_lock_irqsave(&line->lock, flags); - - /*write_room subtracts 1 for the needed NULL, so we readd it.*/ + /* write_room subtracts 1 for the needed NULL, so we readd it.*/ ret = LINE_BUFSIZE - (write_room(line) + 1); spin_unlock_irqrestore(&line->lock, flags); @@ -184,10 +176,6 @@ void line_flush_buffer(struct tty_struct *tty) unsigned long flags; int err; - /*XXX: copied from line_write, verify if it is correct!*/ - if (tty->stopped) - return; - spin_lock_irqsave(&line->lock, flags); err = flush_buffer(line); spin_unlock_irqrestore(&line->lock, flags); @@ -213,9 +201,6 @@ int line_write(struct tty_struct *tty, const unsigned char *buf, int len) unsigned long flags; int n, ret = 0; - if (tty->stopped) - return 0; - spin_lock_irqsave(&line->lock, flags); if (line->head != line->tail) ret = buffer_data(line, buf, len); |