USB: legousbtower: fix memleak on disconnect

[mirror_ubuntu-bionic-kernel.git] / drivers / usb / misc / legousbtower.c

diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index 5418f3a8c50ab5f9ec1aeec118d95dcfd939b3ac..28aefa5ae8cb502b308b5a261946a830e7836a23 100644 (file)
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -419,10 +419,7 @@ static int tower_release (struct inode *inode, struct file *file)
                goto exit;
        }
 
-       if (mutex_lock_interruptible(&dev->lock)) {
-               retval = -ERESTARTSYS;
-               goto exit;
-       }
+       mutex_lock(&dev->lock);
 
        if (dev->open_count != 1) {
                dev_dbg(&dev->udev->dev, "%s: device not opened exactly once\n",