From 6ea7398d00345a33b47d905875416ca4421838de Mon Sep 17 00:00:00 2001 From: Thierry Escande Date: Wed, 12 Feb 2014 14:27:51 +0100 Subject: NFC: digital: Fix a possible memory leak This fixes a memory leak issue that may occur if data sending fails in initiator mode. The data_exch structure was not released in case of error. Reported-by: Dan Carpenter Signed-off-by: Thierry Escande Signed-off-by: Samuel Ortiz --- net/nfc/digital_core.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) (limited to 'net/nfc') diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c index 10146e703270..969a7f924a37 100644 --- a/net/nfc/digital_core.c +++ b/net/nfc/digital_core.c @@ -671,19 +671,27 @@ static int digital_in_send(struct nfc_dev *nfc_dev, struct nfc_target *target, data_exch->cb = cb; data_exch->cb_context = cb_context; - if (ddev->curr_protocol == NFC_PROTO_NFC_DEP) - return digital_in_send_dep_req(ddev, target, skb, data_exch); + if (ddev->curr_protocol == NFC_PROTO_NFC_DEP) { + rc = digital_in_send_dep_req(ddev, target, skb, data_exch); + goto exit; + } if (ddev->curr_protocol == NFC_PROTO_ISO14443) { rc = digital_in_iso_dep_push_sod(ddev, skb); if (rc) - return rc; + goto exit; } ddev->skb_add_crc(skb); - return digital_in_send_cmd(ddev, skb, 500, digital_in_send_complete, - data_exch); + rc = digital_in_send_cmd(ddev, skb, 500, digital_in_send_complete, + data_exch); + +exit: + if (rc) + kfree(data_exch); + + return rc; } static struct nfc_ops digital_nfc_ops = { -- cgit v1.2.3