USB: misc/adutux, fix lock imbalance

Don't unlock adutux_mutex when not held.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 7b6922e..2035265 100644 (file)
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -376,7 +376,7 @@ static int adu_release(struct inode *inode, struct file *file)
        if (dev->open_count <= 0) {
                dbg(1," %s : device not opened", __func__);
                retval = -ENODEV;
-               goto exit;
+               goto unlock;
        }
 
        adu_release_internal(dev);
@@ -385,9 +385,9 @@ static int adu_release(struct inode *inode, struct file *file)
                if (!dev->open_count)   /* ... and we're the last user */
                        adu_delete(dev);
        }
-
-exit:
+unlock:
        mutex_unlock(&adutux_mutex);
+exit:
        dbg(2," %s : leave, return value %d", __func__, retval);
        return retval;
 }