On domain startup, qemuSetupCgroupForExtDevices checks
if a cgroup controller is present and skips the setup if not.
Add a similar check to qemuVirtioFSSetupCgroup to prevent
crashing when hotplugging a virtiofs filesystem.
Signed-off-by: Ján Tomko <jtomko@xxxxxxxxxx>
---
src/qemu/qemu_virtiofs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/qemu/qemu_virtiofs.c b/src/qemu/qemu_virtiofs.c
index d539d0a192..15dea3bb57 100644
--- a/src/qemu/qemu_virtiofs.c
+++ b/src/qemu/qemu_virtiofs.c
@@ -353,6 +353,9 @@ qemuVirtioFSSetupCgroup(virDomainObj *vm,
pid_t pid = -1;
int rc;
+ if (!cgroup)
+ return 0;
+
if (!(pidfile = qemuVirtioFSCreatePidFilename(vm, fs->info.alias)))
return -1;
--
2.44.0
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