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path: root/drivers/nfc/virtual_ncidev.c
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Diffstat (limited to 'drivers/nfc/virtual_ncidev.c')
-rw-r--r--drivers/nfc/virtual_ncidev.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/nfc/virtual_ncidev.c b/drivers/nfc/virtual_ncidev.c
index b027be0b0b6f..590b038e449e 100644
--- a/drivers/nfc/virtual_ncidev.c
+++ b/drivers/nfc/virtual_ncidev.c
@@ -26,10 +26,14 @@ struct virtual_nci_dev {
struct mutex mtx;
struct sk_buff *send_buff;
struct wait_queue_head wq;
+ bool running;
};
static int virtual_nci_open(struct nci_dev *ndev)
{
+ struct virtual_nci_dev *vdev = nci_get_drvdata(ndev);
+
+ vdev->running = true;
return 0;
}
@@ -40,6 +44,7 @@ static int virtual_nci_close(struct nci_dev *ndev)
mutex_lock(&vdev->mtx);
kfree_skb(vdev->send_buff);
vdev->send_buff = NULL;
+ vdev->running = false;
mutex_unlock(&vdev->mtx);
return 0;
@@ -50,7 +55,7 @@ static int virtual_nci_send(struct nci_dev *ndev, struct sk_buff *skb)
struct virtual_nci_dev *vdev = nci_get_drvdata(ndev);
mutex_lock(&vdev->mtx);
- if (vdev->send_buff) {
+ if (vdev->send_buff || !vdev->running) {
mutex_unlock(&vdev->mtx);
kfree_skb(skb);
return -1;