Martin Schwidefsky 656d912537 [S390] 3215 deadlock with tty_wakeup
The 3215 driver calls tty_wakeup from irq context while holding the
device spinlock. If printk is called by any function on the callchain
starting from tty_wakeup the system deadlocks on the device spinlock.
Using a tasklet to call tty_wakup solves the problem.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-02-17 10:29:33 +01:00
..
2012-02-17 10:29:33 +01:00
2012-01-12 15:44:42 +10:30