nvme: free cmbuf in nvme_exit

This avoid a memory leak in unhotplug nvme device.

Signed-off-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 359a06d0ad..09d7c90259 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -1332,6 +1332,9 @@ static void nvme_exit(PCIDevice *pci_dev)
     g_free(n->cq);
     g_free(n->sq);
 
+    if (n->cmb_size_mb) {
+        g_free(n->cmbuf);
+    }
     msix_uninit_exclusive_bar(pci_dev);
 }