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Subject[PATCH 47/69] TTY: ipwireless, use synchronous hangup
Date
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>
Cc: David Sterba <dsterba@suse.cz>
---
drivers/tty/ipwireless/tty.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
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 @@ void ipwireless_tty_free(struct ipw_tty *tty)
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)
--
1.7.9.2



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