NFC: Fixed skb leak in tm_send() nfc and hci ops implementations

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

2 files changed, 12 insertions, 4 deletions

diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c
index 9349c548e8dc..cd8fb16f5416 100644
--- a/drivers/nfc/pn544/pn544.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -675,11 +675,17 @@ static int pn544_hci_im_transceive(struct nfc_hci_dev *hdev,
 
 static int pn544_hci_tm_send(struct nfc_hci_dev *hdev, struct sk_buff *skb)
 {
+        int r;
+
         /* Set default false for multiple information chaining */
         *skb_push(skb, 1) = 0;
 
-        return nfc_hci_send_event(hdev, PN544_RF_READER_NFCIP1_TARGET_GATE,
-                                PN544_HCI_EVT_SND_DATA, skb->data, skb->len);
+        r = nfc_hci_send_event(hdev, PN544_RF_READER_NFCIP1_TARGET_GATE,
+                               PN544_HCI_EVT_SND_DATA, skb->data, skb->len);
+
+        kfree_skb(skb);
+
+        return r;
 }
 
 static int pn544_hci_check_presence(struct nfc_hci_dev *hdev,
diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index 0430f3086e41..d9190da4a403 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -675,8 +675,10 @@ static int hci_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
 
         if (hdev->ops->tm_send)
                 return hdev->ops->tm_send(hdev, skb);
-        else
-                return -ENOTSUPP;
+
+        kfree_skb(skb);
+
+        return -ENOTSUPP;
 }
 
 static int hci_check_presence(struct nfc_dev *nfc_dev,