Comments
Patch
@@ -188,16 +188,13 @@ static void metrousb_cleanup(struct usb_serial_port *port)
{
dev_dbg(&port->dev, "%s\n", __func__);
- if (port->serial->dev) {
- /* Shutdown any interrupt in urbs. */
- if (port->interrupt_in_urb) {
- usb_unlink_urb(port->interrupt_in_urb);
- usb_kill_urb(port->interrupt_in_urb);
- }
-
- /* Send deactivate cmd to device */
+ usb_unlink_urb(port->interrupt_in_urb);
+ usb_kill_urb(port->interrupt_in_urb);
+
+ mutex_lock(&port->serial->disc_mutex);
+ if (!port->serial->disconnected)
metrousb_send_unidirectional_cmd(UNI_CMD_CLOSE, port);
- }
+ mutex_unlock(&port->serial->disc_mutex);
}
static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port)
This is a note to let you know that I have just added a patch titled USB: metro-usb: fix io after disconnect to the linux-3.5.y-queue branch of the 3.5.yuz extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.yuz tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Herton ------ From eab6e2bcc3aabe64f1c0cdead8eeff89df2b680e Mon Sep 17 00:00:00 2001 From: Johan Hovold <jhovold@gmail.com> Date: Thu, 25 Oct 2012 10:29:00 +0200 Subject: [PATCH] USB: metro-usb: fix io after disconnect commit 2ee44fbeac92c36e53779a57ee84cfee1affe418 upstream. Make sure no control urb is submitted during close after a disconnect by checking the disconnected flag. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> --- drivers/usb/serial/metro-usb.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) -- 1.7.9.5