diff options
| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2014-08-12 19:07:57 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-08-26 00:16:23 +0400 |
| commit | 8e8248b1369c97c7bb6f8bcaee1f05deeabab8ef (patch) | |
| tree | aba113db74ade06690667af99e92776be8d13a9c /drivers/misc/mei/nfc.c | |
| parent | 73ab4232388b7a08f17c8d08141ff2099fa0b161 (diff) | |
| download | linux-8e8248b1369c97c7bb6f8bcaee1f05deeabab8ef.tar.xz | |
mei: nfc: fix memory leak in error path
NFC will leak buffer if send failed.
Use single exit point that does the freeing
Cc: stable@vger.kernel.org #3.10+
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/nfc.c')
| -rw-r--r-- | drivers/misc/mei/nfc.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/misc/mei/nfc.c b/drivers/misc/mei/nfc.c index 3095fc514a65..5ccc23bc7690 100644 --- a/drivers/misc/mei/nfc.c +++ b/drivers/misc/mei/nfc.c @@ -342,9 +342,10 @@ static int mei_nfc_send(struct mei_cl_device *cldev, u8 *buf, size_t length) ndev = (struct mei_nfc_dev *) cldev->priv_data; dev = ndev->cl->dev; + err = -ENOMEM; mei_buf = kzalloc(length + MEI_NFC_HEADER_SIZE, GFP_KERNEL); if (!mei_buf) - return -ENOMEM; + goto out; hdr = (struct mei_nfc_hci_hdr *) mei_buf; hdr->cmd = MEI_NFC_CMD_HCI_SEND; @@ -354,12 +355,9 @@ static int mei_nfc_send(struct mei_cl_device *cldev, u8 *buf, size_t length) hdr->data_size = length; memcpy(mei_buf + MEI_NFC_HEADER_SIZE, buf, length); - err = __mei_cl_send(ndev->cl, mei_buf, length + MEI_NFC_HEADER_SIZE); if (err < 0) - return err; - - kfree(mei_buf); + goto out; if (!wait_event_interruptible_timeout(ndev->send_wq, ndev->recv_req_id == ndev->req_id, HZ)) { @@ -368,7 +366,8 @@ static int mei_nfc_send(struct mei_cl_device *cldev, u8 *buf, size_t length) } else { ndev->req_id++; } - +out: + kfree(mei_buf); return err; } |