commit: d7971051e4df825e0bc11b995e87bfe86355b8e5 From: Johan Hovold <jhovold@xxxxxxxxx> Date: Tue, 19 Mar 2013 09:21:09 +0100 Subject: USB: serial: fix interface refcounting Make sure the interface is not released before our serial device. Note that drivers are still not allowed to access the interface in any way that may interfere with another driver that may have gotten bound to the same interface after disconnect returns. Cc: stable <stable@xxxxxxxxxxxxxxx> Signed-off-by: Johan Hovold <jhovold@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/usb/serial/usb-serial.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index a19ed74..2e70efa 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -151,6 +151,7 @@ static void destroy_serial(struct kref *kref) } } + usb_put_intf(serial->interface); usb_put_dev(serial->dev); kfree(serial); } @@ -620,7 +621,7 @@ static struct usb_serial *create_serial(struct usb_device *dev, } serial->dev = usb_get_dev(dev); serial->type = driver; - serial->interface = interface; + serial->interface = usb_get_intf(interface); kref_init(&serial->kref); mutex_init(&serial->disc_mutex); serial->minor = SERIAL_TTY_NO_MINOR; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html