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authorJohan Hovold <jhovold@gmail.com>2012-10-25 10:29:14 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-25 09:37:09 -0700
commit5260e458f5eff269a43e4f1e9c47186c57b88ddb (patch)
tree26dc3f70cc7590688a2fd7680535271b6cf025f2 /drivers/usb
parenta8f2ae7a3aa59079d7e7e1ddf5007f03532f458c (diff)
USB: mct_u232: fix broken close
Make sure generic close is called at close. The driver relies on the generic write implementation but did not call generic close. Note that the call to kill the read urb is not redundant, as mct_u232 uses an interrupt urb from the second port as the read urb and that generic close therefore fails to kill it. Compile-only tested. Cc: <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/serial/mct_u232.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index a8bce134ffb..8a208100410 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -520,12 +520,14 @@ static void mct_u232_dtr_rts(struct usb_serial_port *port, int on)
static void mct_u232_close(struct usb_serial_port *port)
{
- if (port->serial->dev) {
- /* shutdown our urbs */
- usb_kill_urb(port->write_urb);
- usb_kill_urb(port->read_urb);
- usb_kill_urb(port->interrupt_in_urb);
- }
+ /*
+ * Must kill the read urb as it is actually an interrupt urb, which
+ * generic close thus fails to kill.
+ */
+ usb_kill_urb(port->read_urb);
+ usb_kill_urb(port->interrupt_in_urb);
+
+ usb_serial_generic_close(port);
} /* mct_u232_close */