[PATCH] rocket.c: Fix ldisc ref count handling
If bailing out because there is nothing to receive in rp_do_receive(),
tty_ldisc_deref is not called. Failure to do so increases the ref count
and causes release_dev() to hang since it can't get the ref count to 0.
Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index f463d6b..5b1d368 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -355,7 +355,7 @@
ToRecv = space;
if (ToRecv <= 0)
- return;
+ goto done;
/*
* if status indicates there are errored characters in the
@@ -437,6 +437,7 @@
}
/* Push the data up to the tty layer */
ld->receive_buf(tty, tty->flip.char_buf, tty->flip.flag_buf, count);
+done:
tty_ldisc_deref(ld);
}