diff options
Diffstat (limited to 'drivers/tty/moxa.c')
| -rw-r--r-- | drivers/tty/moxa.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c index a290e9ebafe0..6255561dd2a3 100644 --- a/drivers/tty/moxa.c +++ b/drivers/tty/moxa.c @@ -1202,14 +1202,15 @@ static int moxa_write(struct tty_struct *tty, const unsigned char *buf, int count) { struct moxa_port *ch = tty->driver_data; + unsigned long flags; int len; if (ch == NULL) return 0; - spin_lock_bh(&moxa_lock); + spin_lock_irqsave(&moxa_lock, flags); len = MoxaPortWriteData(tty, buf, count); - spin_unlock_bh(&moxa_lock); + spin_unlock_irqrestore(&moxa_lock, flags); set_bit(LOWWAIT, &ch->statusflags); return len; |