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[PULL,1/8] hw/rdma: Fix possible munmap call on a NULL pointer

Message ID 20180503182125.20310-2-marcel.apfelbaum@gmail.com
State New
Headers show
Series [PULL,1/8] hw/rdma: Fix possible munmap call on a NULL pointer | expand

Commit Message

Marcel Apfelbaum May 3, 2018, 6:21 p.m. UTC 
Coverity CID 1390620: we call munmap() on a NULL pointer.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Message-Id: <20180430200223.4119-2-marcel.apfelbaum@gmail.com>
---
 hw/rdma/vmw/pvrdma_cmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/hw/rdma/vmw/pvrdma_cmd.c b/hw/rdma/vmw/pvrdma_cmd.c
index 99019d8741..f9dd78cb27 100644
--- a/hw/rdma/vmw/pvrdma_cmd.c
+++ b/hw/rdma/vmw/pvrdma_cmd.c
@@ -232,7 +232,7 @@  static int create_mr(PVRDMADev *dev, union pvrdma_cmd_req *req,
                                      cmd->start, cmd->length, host_virt,
                                      cmd->access_flags, &resp->mr_handle,
                                      &resp->lkey, &resp->rkey);
-    if (!resp->hdr.err) {
+    if (host_virt && !resp->hdr.err) {
         munmap(host_virt, cmd->length);
     }