Commit a1287ba1 authored Jul 15, 2005 by Michal Ostrowski Committed by Linus Torvalds Jul 15, 2005

[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>

parent 6f97933d

drivers/char/rocket.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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);
		}