TTY: ipwireless, use synchronous hangup
Do not touch internal workqueue. Call tty_vhangup instead.
Note that finished hangup does not necessarily mean that all processes
are dead. Especially when the tty is a console. The code assumes that
right now.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Jiri Kosina <jkosina@suse.cz>
Acked-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c
index 4daf962..e539621 100644
--- a/drivers/tty/ipwireless/tty.c
+++ b/drivers/tty/ipwireless/tty.c
@@ -565,11 +565,11 @@
ttyj->closing = 1;
if (ttyj->linux_tty != NULL) {
mutex_unlock(&ttyj->ipw_tty_mutex);
- tty_hangup(ttyj->linux_tty);
- /* Wait till the tty_hangup has completed */
- flush_work_sync(&ttyj->linux_tty->hangup_work);
+ tty_vhangup(ttyj->linux_tty);
/* FIXME: Exactly how is the tty object locked here
against a parallel ioctl etc */
+ /* FIXME2: hangup does not mean all processes
+ * are gone */
mutex_lock(&ttyj->ipw_tty_mutex);
}
while (ttyj->open_count)