From ce380b8e6fc49692bd4ad124e4d11b6d0500ef44 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx@sigxcpu.org>
Date: Mon, 19 Apr 2010 18:08:19 +0200
Subject: [PATCH] Ignore empty type attribute in driver element of virtual
 disks

Fixes http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=578347
---
 src/qemu/qemu_conf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 0cbedf257d..355fdb9a1e 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -2479,7 +2479,7 @@ qemuBuildDriveStr(virDomainDiskDefPtr disk,
     if (disk->readonly &&
         qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)
         virBufferAddLit(&opt, ",readonly=on");
-    if (disk->driverType &&
+    if (disk->driverType && *disk->driverType != '\0' &&
         disk->type != VIR_DOMAIN_DISK_TYPE_DIR &&
         qemuCmdFlags & QEMUD_CMD_FLAG_DRIVE_FORMAT)
         virBufferVSprintf(&opt, ",format=%s", disk->driverType);
-- 
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