qxl-wddm-dod: Prevent potential memory leak in class driver

In case the device initializes 4 memory bars, the driver maps
physical memory of bar 4 and never unmaps it. Fixing it by
immediate unmap of unused memory bars.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/qxldod/QxlDod.cpp b/qxldod/QxlDod.cpp
index bb71f22..6b0cc5e 100755
--- a/qxldod/QxlDod.cpp
+++ b/qxldod/QxlDod.cpp
@@ -3430,6 +3430,8 @@ NTSTATUS QxlDevice::HWInit(PCM_RESOURCE_LIST pResList, DXGK_DISPLAY_INFORMATION*
                             pci_range = QXL_PCI_RANGES;

                             break;

                         default:

+                            DbgPrint(TRACE_LEVEL_WARNING, ("Unused memory range found\n"));

+                            pDxgkInterface->DxgkCbUnmapMemory(pDxgkInterface->DeviceHandle, MemBase);

                             break;

                         }

                     }