Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754273AbaAMQEK (ORCPT ); Mon, 13 Jan 2014 11:04:10 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:53380 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754088AbaAMQDi (ORCPT ); Mon, 13 Jan 2014 11:03:38 -0500 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Dan Carpenter , Luis Henriques Subject: [PATCH 3.11 118/208] libceph: fix error handling in handle_reply() Date: Mon, 13 Jan 2014 15:59:19 +0000 Message-Id: <1389628849-1614-119-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1389628849-1614-1-git-send-email-luis.henriques@canonical.com> References: <1389628849-1614-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.11 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.11.10.3 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter commit 1874119664dafda3ef2ed9b51b4759a9540d4a1a upstream. We've tried to fix the error paths in this function before, but there is still a hidden goto in the ceph_decode_need() macro which goes to the wrong place. We need to release the "req" and unlock a mutex before returning. Signed-off-by: Dan Carpenter Reviewed-by: Sage Weil Signed-off-by: Luis Henriques --- net/ceph/osd_client.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index dbc0a73..559a832 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -1488,14 +1488,14 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg, dout("handle_reply %p tid %llu req %p result %d\n", msg, tid, req, result); - ceph_decode_need(&p, end, 4, bad); + ceph_decode_need(&p, end, 4, bad_put); numops = ceph_decode_32(&p); if (numops > CEPH_OSD_MAX_OP) goto bad_put; if (numops != req->r_num_ops) goto bad_put; payload_len = 0; - ceph_decode_need(&p, end, numops * sizeof(struct ceph_osd_op), bad); + ceph_decode_need(&p, end, numops * sizeof(struct ceph_osd_op), bad_put); for (i = 0; i < numops; i++) { struct ceph_osd_op *op = p; int len; @@ -1513,7 +1513,7 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg, goto bad_put; } - ceph_decode_need(&p, end, 4 + numops * 4, bad); + ceph_decode_need(&p, end, 4 + numops * 4, bad_put); retry_attempt = ceph_decode_32(&p); for (i = 0; i < numops; i++) req->r_reply_op_result[i] = ceph_decode_32(&p); -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/