[PATCH AUTOSEL 4.19 18/68] st_nci_hci_connectivity_event_received: null check the allocation

From: Sasha Levin
Date: Tue Aug 13 2019 - 22:16:28 EST


From: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>

[ Upstream commit 3008e06fdf0973770370f97d5f1fba3701d8281d ]

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

Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/nfc/st-nci/se.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/nfc/st-nci/se.c b/drivers/nfc/st-nci/se.c
index f55d082ace715..5d6e7e931bc6c 100644
--- a/drivers/nfc/st-nci/se.c
+++ b/drivers/nfc/st-nci/se.c
@@ -344,6 +344,8 @@ static int st_nci_hci_connectivity_event_received(struct nci_dev *ndev,

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], transaction->aid_len);
--
2.20.1