Staging: comedi: unlock on error in usbduxsigma_attach()

We should release the udev->sem lock before returning.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c
index f4025b60cd3fc21224bd582c33a87843501216ff..4500b80eee6bf8d78f30ce9da829f22669e9e0fb 100644 (file)
--- a/drivers/staging/comedi/drivers/usbduxsigma.c
+++ b/drivers/staging/comedi/drivers/usbduxsigma.c
@@ -2691,6 +2691,7 @@ static int usbduxsigma_attach(struct comedi_device *dev,
        if (ret < 0) {
                dev_err(&udev->interface->dev,
                        "comedi%d: no space for subdev\n", dev->minor);
+               up(&udev->sem);
                up(&start_stop_sem);
                return ret;
        }