diff options
Diffstat (limited to 'drivers/char/amiserial.c')
| -rw-r--r-- | drivers/char/amiserial.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c index 8ab75a43231..a5f3956a597 100644 --- a/drivers/char/amiserial.c +++ b/drivers/char/amiserial.c @@ -1505,8 +1505,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp) rs_wait_until_sent(tty, info->timeout); } shutdown(info); - if (tty->driver->flush_buffer) - tty->driver->flush_buffer(tty); + rs_flush_buffer(tty); tty_ldisc_flush(tty); tty->closing = 0; @@ -1539,6 +1538,8 @@ static void rs_wait_until_sent(struct tty_struct *tty, int timeout) return; /* Just in case.... */ orig_jiffies = jiffies; + + lock_kernel(); /* * Set the check interval to be 1/5 of the estimated time to * send a single character, and make it at least 1. The check @@ -1579,6 +1580,7 @@ static void rs_wait_until_sent(struct tty_struct *tty, int timeout) break; } __set_current_state(TASK_RUNNING); + unlock_kernel(); #ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT printk("lsr = %d (jiff=%lu)...done\n", lsr, jiffies); #endif |