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path: root/drivers/media/dvb/dvb-core/dvbdev.c
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Diffstat (limited to 'drivers/media/dvb/dvb-core/dvbdev.c')
-rw-r--r--drivers/media/dvb/dvb-core/dvbdev.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
index 54f8b95717b..cb622bbf655 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -200,6 +200,8 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
const struct dvb_device *template, void *priv, int type)
{
struct dvb_device *dvbdev;
+ struct file_operations *dvbdevfops;
+
int id;
if (mutex_lock_interruptible(&dvbdev_register_lock))
@@ -221,12 +223,22 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
mutex_unlock(&dvbdev_register_lock);
+ dvbdevfops = kzalloc(sizeof(struct file_operations), GFP_KERNEL);
+
+ if (!dvbdevfops) {
+ kfree (dvbdev);
+ mutex_unlock(&dvbdev_register_lock);
+ return -ENOMEM;
+ }
+
memcpy(dvbdev, template, sizeof(struct dvb_device));
dvbdev->type = type;
dvbdev->id = id;
dvbdev->adapter = adap;
dvbdev->priv = priv;
+ dvbdev->fops = dvbdevfops;
+ memcpy(dvbdev->fops, template->fops, sizeof(struct file_operations));
dvbdev->fops->owner = adap->module;
list_add_tail (&dvbdev->list_head, &adap->device_list);
@@ -259,6 +271,7 @@ void dvb_unregister_device(struct dvb_device *dvbdev)
dvbdev->type, dvbdev->id)));
list_del (&dvbdev->list_head);
+ kfree (dvbdev->fops);
kfree (dvbdev);
}
EXPORT_SYMBOL(dvb_unregister_device);