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authorJiri Slaby <jirislaby@gmail.com>2009-04-06 20:34:10 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-07 01:36:33 +0400
commit0326e6d596491db64d787136cbd703bde0ee8d77 (patch)
tree4eca69db77dbfd32d1b59dc2239f65046c8aa3ae /drivers/char
parent0e0fd7d73ed130583dca16405b029f56bf65109f (diff)
downloadlinux-0326e6d596491db64d787136cbd703bde0ee8d77.tar.xz
mxser: remove tty_port_tty_get from mxser_check_modem_status
mxser_check_modem_status is called with tty parameter, so the reference should be increased by callers already -- for ioctl syscall it is held whole time gap since open to close, for interrupt, the reference count is increased in the irq handler. There is no tty_kref_put in that function, so this also fixes a refcounting bug. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/mxser.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 402c9f217f83..a420e8d437dd 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -820,7 +820,6 @@ static void mxser_check_modem_status(struct tty_struct *tty,
wake_up_interruptible(&port->port.open_wait);
}
- tty = tty_port_tty_get(&port->port);
if (port->port.flags & ASYNC_CTS_FLOW) {
if (tty->hw_stopped) {
if (status & UART_MSR_CTS) {