[libvirt] [PATCH 3/6] vz: handle sourceless cdroms

[Maxim Nestratov]

From: Mikhail Feoktistov <mfeoktistov at virtuozzo.com>

SDK handles empty cdroms all right. We just need to
pass "" instead of NULL (not setting is good too).

However we can get problems here. Disk detaching treats source
as ids. Fortunately disk detaching is not supported for cdroms
yet and for hard disks we can not get empty source - this is prohibitited
by xml parsing code.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy at virtuozzo.com>
Signed-off-by: Maxim Nestratov <mnestratov at virtuozzo.com>
---
 src/vz/vz_sdk.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/vz/vz_sdk.c b/src/vz/vz_sdk.c
index b321d39..e373748 100644
--- a/src/vz/vz_sdk.c
+++ b/src/vz/vz_sdk.c
@@ -3216,11 +3216,13 @@ static int prlsdkAddDisk(vzDriverPtr driver,
     pret = PrlVmDev_SetEmulatedType(sdkdisk, emutype);
     prlsdkCheckRetGoto(pret, cleanup);
 
-    pret = PrlVmDev_SetSysName(sdkdisk, path);
-    prlsdkCheckRetGoto(pret, cleanup);
+    if (disk->src->path) {
+        pret = PrlVmDev_SetSysName(sdkdisk, path);
+        prlsdkCheckRetGoto(pret, cleanup);
 
-    pret = PrlVmDev_SetFriendlyName(sdkdisk, path);
-    prlsdkCheckRetGoto(pret, cleanup);
+        pret = PrlVmDev_SetFriendlyName(sdkdisk, path);
+        prlsdkCheckRetGoto(pret, cleanup);
+    }
 
     drive = &disk->info.addr.drive;
     if (drive->controller > 0) {
-- 
2.4.3