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conf: Report sensible error for invalid disk name

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The error "... but the cause is unknown" appeared for XMLs similar to
this:

 <disk type='file' device='cdrom'>
   <driver name='qemu' type='raw'/>
   <source file='/dev/zero'/>
   <target dev='sr0'/>
 </disk>

Notice unsupported disk type (for the driver), but also no address
specified. The first part is not a problem and we should not abort
immediately because of that, but the combination with the address
unknown was causing an unspecified error.

While fixing this, I added an error to one place where this return
value was not managed properly.
(cherry picked from commit 03cd6e4ae8)
This commit is contained in:
Martin Kletzander 2012-11-20 14:45:56 +01:00 committed by Cole Robinson
parent adc0bc4c1d
commit 179216680e
2 changed files with 10 additions and 2 deletions
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6
src/conf/domain_conf.c
View File

@ -2999,8 +2999,12 @@ int
virDomainDiskDefAssignAddress(virCapsPtr caps, virDomainDiskDefPtr def)
{
int idx = virDiskNameToIndex(def->dst);
if (idx < 0)
if (idx < 0) {
virReportError(VIR_ERR_XML_ERROR,
_("Unknown disk name '%s' and no address specified"),
def->dst);
return -1;
}
switch (def->bus) {
case VIR_DOMAIN_DISK_BUS_SCSI:

6
src/qemu/qemu_command.c
View File

@ -8299,8 +8299,12 @@ virDomainDefPtr qemuParseCommandLine(virCapsPtr caps,
!disk->dst)
goto no_memory;
if (virDomainDiskDefAssignAddress(caps, disk) < 0)
if (virDomainDiskDefAssignAddress(caps, disk) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Cannot assign address for device name '%s'"),
disk->dst);
goto error;
}
if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0)
goto no_memory;