diff options
author | Alan Cox <alan@linux.intel.com> | 2010-02-08 10:10:04 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-02 22:55:02 (GMT) |
commit | 49d3380e3f1297ff7bdc700c0a7fe6c3a036b3ab (patch) | |
tree | d1b991ab99dcfb634e913db5443e5581982a47d7 | |
parent | bd07c551aae5d2200c7b195142e5ba63f26424da (diff) | |
download | linux-fsl-qoriq-49d3380e3f1297ff7bdc700c0a7fe6c3a036b3ab.tar.xz |
tty: Fix various bogus WARN checks in the usb serial layer
We are now refcounted and all the port.count checking is no longer valid
and in fact produces false warnings.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r-- | drivers/usb/serial/usb-serial.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 9c7e1d5..3873660 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -358,10 +358,6 @@ static int serial_write(struct tty_struct *tty, const unsigned char *buf, dbg("%s - port %d, %d byte(s)", __func__, port->number, count); - /* count is managed under the mutex lock for the tty so cannot - drop to zero until after the last close completes */ - WARN_ON(!port->port.count); - /* pass on to the driver specific version of this function */ retval = port->serial->type->write(tty, port, buf, count); @@ -373,7 +369,6 @@ static int serial_write_room(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->port.count); /* pass on to the driver specific version of this function */ return port->serial->type->write_room(tty); } @@ -396,7 +391,6 @@ static void serial_throttle(struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->port.count); /* pass on to the driver specific version of this function */ if (port->serial->type->throttle) port->serial->type->throttle(tty); @@ -407,7 +401,6 @@ static void serial_unthrottle(struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->port.count); /* pass on to the driver specific version of this function */ if (port->serial->type->unthrottle) port->serial->type->unthrottle(tty); @@ -421,8 +414,6 @@ static int serial_ioctl(struct tty_struct *tty, struct file *file, dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd); - WARN_ON(!port->port.count); - /* pass on to the driver specific version of this function if it is available */ if (port->serial->type->ioctl) { @@ -437,7 +428,6 @@ static void serial_set_termios(struct tty_struct *tty, struct ktermios *old) struct usb_serial_port *port = tty->driver_data; dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->port.count); /* pass on to the driver specific version of this function if it is available */ if (port->serial->type->set_termios) @@ -452,7 +442,6 @@ static int serial_break(struct tty_struct *tty, int break_state) dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->port.count); /* pass on to the driver specific version of this function if it is available */ if (port->serial->type->break_ctl) @@ -513,7 +502,6 @@ static int serial_tiocmget(struct tty_struct *tty, struct file *file) dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->port.count); if (port->serial->type->tiocmget) return port->serial->type->tiocmget(tty, file); return -EINVAL; @@ -526,7 +514,6 @@ static int serial_tiocmset(struct tty_struct *tty, struct file *file, dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->port.count); if (port->serial->type->tiocmset) return port->serial->type->tiocmset(tty, file, set, clear); return -EINVAL; |