st21nfca_connectivity_event_received: null check the allocation

[ Upstream commit 9891d06836e67324c9e9c4675ed90fc8b8110034 ]

devm_kzalloc may fail and return null. So the null check is needed.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/nfc/st21nfca/se.c b/drivers/nfc/st21nfca/se.c
index 4bed9e8..fd967a3 100644 (file)
--- a/drivers/nfc/st21nfca/se.c
+++ b/drivers/nfc/st21nfca/se.c
@@ -328,6 +328,8 @@ int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host,
 
                transaction = (struct nfc_evt_transaction *)devm_kzalloc(dev,
                                                   skb->len - 2, GFP_KERNEL);
+               if (!transaction)
+                       return -ENOMEM;
 
                transaction->aid_len = skb->data[1];
                memcpy(transaction->aid, &skb->data[2],