From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759407Ab2K3S7Q (ORCPT ); Fri, 30 Nov 2012 13:59:16 -0500 Received: from mail.kernel.org ([198.145.19.201]:58764 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758905Ab2K3S5B (ORCPT ); Fri, 30 Nov 2012 13:57:01 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg Kroah-Hartman , alan@lxorguk.ukuu.org.uk, Waldemar Rymarkiewicz , Samuel Ortiz , Peter Huewe Subject: [ 46/56] NFC: pn533: Fix mem leak in pn533_in_dep_link_up Date: Fri, 30 Nov 2012 10:55:38 -0800 Message-Id: <20121130185123.048434895@linuxfoundation.org> X-Mailer: git-send-email 1.8.0.197.g5a90748 In-Reply-To: <20121130185118.302752929@linuxfoundation.org> References: <20121130185118.302752929@linuxfoundation.org> User-Agent: quilt/0.60-2.1.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Waldemar Rymarkiewicz commit 70418e6efcf4f8652cc08e3f2ab8ae35f0948fd9 upstream. cmd is allocated in pn533_dep_link_up and passed as an arg to pn533_send_cmd_frame_async together with a complete cb. arg is passed to the cb and must be kfreed there. Signed-off-by: Waldemar Rymarkiewicz Signed-off-by: Samuel Ortiz Signed-off-by: Peter Huewe Signed-off-by: Greg Kroah-Hartman --- drivers/nfc/pn533.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -1278,11 +1278,14 @@ static void pn533_deactivate_target(stru static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg, u8 *params, int params_len) { - struct pn533_cmd_jump_dep *cmd; struct pn533_cmd_jump_dep_response *resp; struct nfc_target nfc_target; u8 target_gt_len; int rc; + struct pn533_cmd_jump_dep *cmd = (struct pn533_cmd_jump_dep *)arg; + u8 active = cmd->active; + + kfree(arg); if (params_len == -ENOENT) { nfc_dev_dbg(&dev->interface->dev, ""); @@ -1304,7 +1307,6 @@ static int pn533_in_dep_link_up_complete } resp = (struct pn533_cmd_jump_dep_response *) params; - cmd = (struct pn533_cmd_jump_dep *) arg; rc = resp->status & PN533_CMD_RET_MASK; if (rc != PN533_CMD_RET_SUCCESS) { nfc_dev_err(&dev->interface->dev, @@ -1334,7 +1336,7 @@ static int pn533_in_dep_link_up_complete if (rc == 0) rc = nfc_dep_link_is_up(dev->nfc_dev, dev->nfc_dev->targets[0].idx, - !cmd->active, NFC_RF_INITIATOR); + !active, NFC_RF_INITIATOR); return 0; }