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vircgroup: no need to ifdef virCgroupFree

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virCgroup struct is always defined and the free function is not calling
anything that would require OS supporting cgroups.

This fixes an issue if we try to start a VM with QEMU binary that
doesn't support QXL.  The start operation will fail in
qemuProcessStartValidateVideo() which will set correct error message,
but later in one of the cleanup paths we will call
qemuDomainObjPrivateDataClear() which always calls virCgroupFree()
and that will fail on OS that doesn't support cgroups and it will
set a new error which will be eventually reported to user.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2019-04-24 15:26:12 +02:00
parent 51f9f80d35
commit 9470815d54
1 changed files with 27 additions and 35 deletions
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62
src/util/vircgroup.c
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@ -1279,33 +1279,6 @@ virCgroupNewIgnoreError(void)
}
/**
* virCgroupFree:
*
* @group: The group structure to free
*/
void
virCgroupFree(virCgroupPtr *group)
{
size_t i;
if (*group == NULL)
return;
for (i = 0; i < VIR_CGROUP_CONTROLLER_LAST; i++) {
VIR_FREE((*group)->legacy[i].mountPoint);
VIR_FREE((*group)->legacy[i].linkPoint);
VIR_FREE((*group)->legacy[i].placement);
}
VIR_FREE((*group)->unified.mountPoint);
VIR_FREE((*group)->unified.placement);
VIR_FREE((*group)->path);
VIR_FREE(*group);
}
/**
* virCgroupHasController: query whether a cgroup controller is present
*
@ -2917,14 +2890,6 @@ virCgroupNewIgnoreError(void)
}
void
virCgroupFree(virCgroupPtr *group ATTRIBUTE_UNUSED)
{
virReportSystemError(ENXIO, "%s",
_("Control groups not supported on this platform"));
}
bool
virCgroupHasController(virCgroupPtr cgroup ATTRIBUTE_UNUSED,
int controller ATTRIBUTE_UNUSED)
@ -3565,6 +3530,33 @@ virCgroupControllerAvailable(int controller ATTRIBUTE_UNUSED)
#endif /* !__linux__ */
/**
* virCgroupFree:
*
* @group: The group structure to free
*/
void
virCgroupFree(virCgroupPtr *group)
{
size_t i;
if (*group == NULL)
return;
for (i = 0; i < VIR_CGROUP_CONTROLLER_LAST; i++) {
VIR_FREE((*group)->legacy[i].mountPoint);
VIR_FREE((*group)->legacy[i].linkPoint);
VIR_FREE((*group)->legacy[i].placement);
}
VIR_FREE((*group)->unified.mountPoint);
VIR_FREE((*group)->unified.placement);
VIR_FREE((*group)->path);
VIR_FREE(*group);
}
int
virCgroupDelThread(virCgroupPtr cgroup,
virCgroupThreadName nameval,