From: Dan Carpenter Date: Thu, 15 Aug 2013 05:51:58 +0000 (+0300) Subject: libceph: fix error handling in handle_reply() X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1874119664dafda3ef2ed9b51b4759a9540d4a1a;p=linux-beck.git libceph: fix error handling in handle_reply() 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 --- diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 8ec65bc11c71..3ee4a1da02cd 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -1495,14 +1495,14 @@ 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; @@ -1520,7 +1520,7 @@ 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);