Use msleep_interruptible() instead of schedule_timeout() to guarantee the task delays as expected. Signed-off-by: Nishanth Aravamudan Signed-off-by: Maximilian Attems Signed-off-by: Domen Puncer --- kj-domen/drivers/tc/zs.c | 6 ++---- 1 files changed, 2 insertions(+), 4 deletions(-) diff -puN drivers/tc/zs.c~msleep_interruptible-drivers_tc_zs drivers/tc/zs.c --- kj/drivers/tc/zs.c~msleep_interruptible-drivers_tc_zs 2005-03-02 10:41:55.000000000 +0100 +++ kj-domen/drivers/tc/zs.c 2005-03-02 10:41:55.000000000 +0100 @@ -1368,8 +1368,7 @@ static void rs_close(struct tty_struct * info->tty = 0; if (info->blocked_open) { if (info->close_delay) { - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(info->close_delay); + msleep_interruptible(jiffies_to_msecs(info->close_delay)); } wake_up_interruptible(&info->open_wait); } @@ -1403,8 +1402,7 @@ static void rs_wait_until_sent(struct tt if (timeout) char_time = min(char_time, timeout); while ((read_zsreg(info->zs_channel, 1) & Tx_BUF_EMP) == 0) { - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(char_time); + msleep_interruptible(jiffies_to_msecs(char_time)); if (signal_pending(current)) break; if (timeout && time_after(jiffies, orig_jiffies + timeout)) _