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[Qemu-devel] [PATCH v2] hw: pvrdma: fix memory leak in error path
From: |
Li Qiang |
Subject: |
[Qemu-devel] [PATCH v2] hw: pvrdma: fix memory leak in error path |
Date: |
Tue, 8 Jan 2019 07:02:28 -0800 |
Currently, pvrdma_qp_send() function leak the 'comp_ctx',
Since 'comp_ctx' is used after the two checks, just relocate
the allocation & initialization after the two check.
Spotted by Coverity: CID 1398595
Fixes: 2b05705dc8
Signed-off-by: Li Qiang <address@hidden>
---
hw/rdma/vmw/pvrdma_qp_ops.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/hw/rdma/vmw/pvrdma_qp_ops.c b/hw/rdma/vmw/pvrdma_qp_ops.c
index 300471a4c9..471bdbaaa0 100644
--- a/hw/rdma/vmw/pvrdma_qp_ops.c
+++ b/hw/rdma/vmw/pvrdma_qp_ops.c
@@ -157,14 +157,6 @@ int pvrdma_qp_send(PVRDMADev *dev, uint32_t qp_handle)
pr_dbg("wr_id=%" PRIx64 "\n", wqe->hdr.wr_id);
- /* Prepare CQE */
- comp_ctx = g_malloc(sizeof(CompHandlerCtx));
- comp_ctx->dev = dev;
- comp_ctx->cq_handle = qp->send_cq_handle;
- comp_ctx->cqe.wr_id = wqe->hdr.wr_id;
- comp_ctx->cqe.qp = qp_handle;
- comp_ctx->cqe.opcode = IBV_WC_SEND;
-
sgid = rdma_rm_get_gid(&dev->rdma_dev_res,
wqe->hdr.wr.ud.av.gid_index);
if (!sgid) {
pr_dbg("Fail to get gid for idx %d\n",
wqe->hdr.wr.ud.av.gid_index);
@@ -182,6 +174,14 @@ int pvrdma_qp_send(PVRDMADev *dev, uint32_t qp_handle)
return -EIO;
}
+ /* Prepare CQE */
+ comp_ctx = g_malloc(sizeof(CompHandlerCtx));
+ comp_ctx->dev = dev;
+ comp_ctx->cq_handle = qp->send_cq_handle;
+ comp_ctx->cqe.wr_id = wqe->hdr.wr_id;
+ comp_ctx->cqe.qp = qp_handle;
+ comp_ctx->cqe.opcode = IBV_WC_SEND;
+
rdma_backend_post_send(&dev->backend_dev, &qp->backend_qp, qp->qp_type,
(struct ibv_sge *)&wqe->sge[0],
wqe->hdr.num_sge,
sgid_idx, sgid,
--
2.17.1
- [Qemu-devel] [PATCH v2] hw: pvrdma: fix memory leak in error path,
Li Qiang <=