USB: image/mdc800, fix lock imbalance

There is an omitted unlock in mdc800_usb_probe's fail path. Add it.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Henning Zabel <henning@uni-paderborn.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c
index 878c77ca086e..972f20b3406c 100644
--- a/drivers/usb/image/mdc800.c
+++ b/drivers/usb/image/mdc800.c
@@ -499,6 +499,7 @@ static int mdc800_usb_probe (struct usb_interface *intf,
         retval = usb_register_dev(intf, &mdc800_class);
         if (retval) {
                 dev_err(&intf->dev, "Not able to get a minor for this device.\n");
+                mutex_unlock(&mdc800->io_lock);
                 return -ENODEV;
         }