From 4b9d4103e5ff91b022ee8e9522040829f009543a Mon Sep 17 00:00:00 2001

From: Alon Levy <alevy@redhat.com>

Date: Tue, 21 Aug 2012 13:51:32 +0300

Subject: [PATCH] qxl: disallow unknown revisions

Signed-off-by: Alon Levy <alevy@redhat.com>

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

---

 hw/qxl.c | 6 +++---

 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/qxl.c b/hw/qxl.c

index 59bf822..71879fe 100644

--- a/hw/qxl.c

+++ b/hw/qxl.c

@@ -1873,9 +1873,9 @@ static int qxl_init_common(PCIQXLDevice *qxl)

         break;

 #endif

     default:

-        pci_device_rev = QXL_DEFAULT_REVISION;

-        io_size = msb_mask(QXL_IO_RANGE_SIZE * 2 - 1);

-        break;

+        error_report("Invalid revision %d for qxl device (max %d)",

+                     qxl->revision, QXL_DEFAULT_REVISION);

+        return -1;

     }

     pci_set_byte(&config[PCI_REVISION_ID], pci_device_rev);

-- 

1.7.12.1