From a1287ba1ba810aae1f8b81e32560d5d3bf3ff9f0 Mon Sep 17 00:00:00 2001 From: Michal Ostrowski Date: Fri, 15 Jul 2005 03:56:33 -0700 Subject: [PATCH] [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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/rocket.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c index f463d6baa685..5b1d3680c8ab 100644 --- a/drivers/char/rocket.c +++ b/drivers/char/rocket.c @@ -355,7 +355,7 @@ static void rp_do_receive(struct r_port *info, ToRecv = space; if (ToRecv <= 0) - return; + goto done; /* * if status indicates there are errored characters in the @@ -437,6 +437,7 @@ static void rp_do_receive(struct r_port *info, } /* 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); } -- 2.20.1