[PATCH AUTOSEL 4.9 4/6] NFC: st21nfca: add missed kfree_skb() in an error path

From: Sasha Levin
Date: Fri Jun 05 2020 - 08:27:19 EST


From: Chuhong Yuan <hslester96@xxxxxxxxx>

[ Upstream commit 3decabdc714ca56c944f4669b4cdec5c2c1cea23 ]

st21nfca_tm_send_atr_res() misses to call kfree_skb() in an error path.
Add the missed function call to fix it.

Fixes: 1892bf844ea0 ("NFC: st21nfca: Adding P2P support to st21nfca in Initiator & Target mode")
Signed-off-by: Chuhong Yuan <hslester96@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/nfc/st21nfca/dep.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/nfc/st21nfca/dep.c b/drivers/nfc/st21nfca/dep.c
index 798a32bbac5d..e023a679bdea 100644
--- a/drivers/nfc/st21nfca/dep.c
+++ b/drivers/nfc/st21nfca/dep.c
@@ -184,8 +184,10 @@ static int st21nfca_tm_send_atr_res(struct nfc_hci_dev *hdev,
memcpy(atr_res->gbi, atr_req->gbi, gb_len);
r = nfc_set_remote_general_bytes(hdev->ndev, atr_res->gbi,
gb_len);
- if (r < 0)
+ if (r < 0) {
+ kfree_skb(skb);
return r;
+ }
}

info->dep_info.curr_nfc_dep_pni = 0;
--
2.25.1