From 44334bd97e76662c5f40c629357e6acc4dee3e8a Mon Sep 17 00:00:00 2001 From: Eric Sesterhenn Date: Thu, 28 Sep 2006 10:38:32 -0700 Subject: RDMA/amso1100: Fix error path in c2_llp_accept() Another NULL dereference spotted by the Coverity checker (cid #1395): In case we can't alloc the vq_req, we goto bail1, where we call vq_req_free(c2dev, vq_req); which then dereferences vq_req. Signed-off-by: Eric Sesterhenn Signed-off-by: Andrew Morton Acked-by: Tom Tucker Signed-off-by: Roland Dreier --- drivers/infiniband/hw/amso1100/c2_cm.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) (limited to 'drivers/infiniband/hw/amso1100') diff --git a/drivers/infiniband/hw/amso1100/c2_cm.c b/drivers/infiniband/hw/amso1100/c2_cm.c index 485254efdd1..75b93e9b881 100644 --- a/drivers/infiniband/hw/amso1100/c2_cm.c +++ b/drivers/infiniband/hw/amso1100/c2_cm.c @@ -302,7 +302,7 @@ int c2_llp_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) vq_req = vq_req_alloc(c2dev); if (!vq_req) { err = -ENOMEM; - goto bail1; + goto bail0; } vq_req->qp = qp; vq_req->cm_id = cm_id; @@ -311,7 +311,7 @@ int c2_llp_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) wr = kmalloc(c2dev->req_vq.msg_size, GFP_KERNEL); if (!wr) { err = -ENOMEM; - goto bail2; + goto bail1; } /* Build the WR */ @@ -331,7 +331,7 @@ int c2_llp_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) /* Validate private_data length */ if (iw_param->private_data_len > C2_MAX_PRIVATE_DATA_SIZE) { err = -EINVAL; - goto bail2; + goto bail1; } if (iw_param->private_data) { @@ -348,19 +348,19 @@ int c2_llp_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) err = vq_send_wr(c2dev, (union c2wr *) wr); if (err) { vq_req_put(c2dev, vq_req); - goto bail2; + goto bail1; } /* Wait for reply from adapter */ err = vq_wait_for_reply(c2dev, vq_req); if (err) - goto bail2; + goto bail1; /* Check that reply is present */ reply = (struct c2wr_cr_accept_rep *) (unsigned long) vq_req->reply_msg; if (!reply) { err = -ENOMEM; - goto bail2; + goto bail1; } err = c2_errno(reply); @@ -368,9 +368,8 @@ int c2_llp_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) if (!err) c2_set_qp_state(qp, C2_QP_STATE_RTS); - bail2: - kfree(wr); bail1: + kfree(wr); vq_req_free(c2dev, vq_req); bail0: if (err) { -- cgit v1.2.3