V4L/DVB (6103): dvb_ca_en50221: return correct error code value

return correct error code value
Signed-off-by: Marco Schluessler <marco@lordzodiac.de>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/dvb/dvb-core/dvb_ca_en50221.c

@@ -1569,7 +1569,7 @@ static int dvb_ca_en50221_io_release(struct inode *inode, struct file *file)
 {
 	struct dvb_device *dvbdev = file->private_data;
 	struct dvb_ca_private *ca = dvbdev->priv;
-	int err = 0;
+	int err;
 
 	dprintk("%s\n", __FUNCTION__);
 
@@ -1581,7 +1581,7 @@ static int dvb_ca_en50221_io_release(struct inode *inode, struct file *file)
 
 	module_put(ca->pub->owner);
 
-	return 0;
+	return err;
 }