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authorChristophe Ricard <christophe.ricard@gmail.com>2014-09-13 10:28:44 +0200
committerSamuel Ortiz <sameo@linux.intel.com>2014-09-24 02:02:23 +0200
commitecc6522b0804d8102d57a9eac36448bda416ce8c (patch)
tree24e93b3db2448137cc2bc4a98306ddcfddb11122 /drivers/nfc/st21nfca
parentNFC: st21nfca: Fix few coding style issue (diff)
downloadlinux-ecc6522b0804d8102d57a9eac36448bda416ce8c.tar.xz
linux-ecc6522b0804d8102d57a9eac36448bda416ce8c.zip
NFC: st21nfca: Fix potential skb leaks in NFC-DEP code
After a unsuccessful call to nfc_hci_send_event the skb was not freed and might lead to memory leak. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc/st21nfca')
-rw-r--r--drivers/nfc/st21nfca/st21nfca_dep.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/nfc/st21nfca/st21nfca_dep.c b/drivers/nfc/st21nfca/st21nfca_dep.c
index 03dacc6550bc..bf3132ba743c 100644
--- a/drivers/nfc/st21nfca/st21nfca_dep.c
+++ b/drivers/nfc/st21nfca/st21nfca_dep.c
@@ -185,8 +185,10 @@ static int st21nfca_tm_send_atr_res(struct nfc_hci_dev *hdev,
info->dep_info.curr_nfc_dep_pni = 0;
- return nfc_hci_send_event(hdev, ST21NFCA_RF_CARD_F_GATE,
+ r = nfc_hci_send_event(hdev, ST21NFCA_RF_CARD_F_GATE,
ST21NFCA_EVT_SEND_DATA, skb->data, skb->len);
+ kfree_skb(skb);
+ return r;
}
static int st21nfca_tm_recv_atr_req(struct nfc_hci_dev *hdev,
@@ -254,6 +256,8 @@ static int st21nfca_tm_send_psl_res(struct nfc_hci_dev *hdev,
r = nfc_hci_send_event(hdev, ST21NFCA_RF_CARD_F_GATE,
ST21NFCA_EVT_SEND_DATA, skb->data, skb->len);
+ if (r < 0)
+ goto error;
/*
* ST21NFCA only support P2P passive.
@@ -269,8 +273,11 @@ static int st21nfca_tm_send_psl_res(struct nfc_hci_dev *hdev,
}
/* Send an event to change bitrate change event to card f */
- return nfc_hci_send_event(hdev, ST21NFCA_RF_CARD_F_GATE,
+ r = nfc_hci_send_event(hdev, ST21NFCA_RF_CARD_F_GATE,
ST21NFCA_EVT_CARD_F_BITRATE, bitrate, 2);
+error:
+ kfree_skb(skb);
+ return r;
}
static int st21nfca_tm_recv_psl_req(struct nfc_hci_dev *hdev,