diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
index 14a372a..e23d8a0 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -233,6 +233,7 @@
 	dvbdev->adapter = adap;
 	dvbdev->priv = priv;
 	dvbdev->fops = dvbdevfops;
+	init_waitqueue_head (&dvbdev->wait_queue);
 
 	memcpy(dvbdev->fops, template->fops, sizeof(struct file_operations));
 	dvbdev->fops->owner = adap->module;