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[Qemu-devel] [PATCH v10 2/4] qxl: disallow unknown revisions


From: Alon Levy
Subject: [Qemu-devel] [PATCH v10 2/4] qxl: disallow unknown revisions
Date: Tue, 21 Aug 2012 13:16:21 +0300

Signed-off-by: Alon Levy <address@hidden>
---
 hw/qxl.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/hw/qxl.c b/hw/qxl.c
index 6c48eb9..c978f5e 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -1797,10 +1797,13 @@ static int qxl_init_common(PCIQXLDevice *qxl)
         io_size = 16;
         break;
     case 3: /* qxl-3 */
-    default:
         pci_device_rev = QXL_DEFAULT_REVISION;
         io_size = msb_mask(QXL_IO_RANGE_SIZE * 2 - 1);
         break;
+    default:
+        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);
-- 
1.7.11.2




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