[PATCH 07/11] xen/sys-hypervisor: Add release callback to hyp_sysfs_kobj_type
flat view
WARM3d
From: Ian Rogers <irogers@google.com>
Date: 2026-10-13 22:40:43
Also in:
amd-gfx, dri-devel, driver-core, gfs2, linux-acpi, linux-doc, linux-hardening, linux-pm, linux-s390, linux-sh, lkml, llvm, xen-devel
Subsystem:
the rest, xen hypervisor interface · Maintainers:
Linus Torvalds, Juergen Gross, Stefano Stabellini
hypervisor_init() in drivers/base/hypervisor.c creates hypervisor_kobj
with kobject_create_and_add() (which allocates a dynamic kobject using
dynamic_kobj_ktype), and hypervisor_subsys_init() in
drivers/xen/sys-hypervisor.c then overwrites hypervisor_kobj->ktype with
&hyp_sysfs_kobj_type, which had no .release callback.
Add hyp_sysfs_release() calling kfree(kobj) to preserve the dynamic
kobject release behavior.
Fixes: cff7e81b3dd7 ("xen: add /sys/hypervisor support")
Assisted-by: Antigravity:gemini-3.1-pro
Signed-off-by: Ian Rogers <irogers@google.com>
---
drivers/xen/sys-hypervisor.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c
index 91923242a5ae..0e8a2cd69fd6 100644
--- a/drivers/xen/sys-hypervisor.c
+++ b/drivers/xen/sys-hypervisor.c@@ -659,7 +659,13 @@ static const struct sysfs_ops hyp_sysfs_ops = { .store = hyp_sysfs_store, }; +static void hyp_sysfs_release(struct kobject *kobj) +{ + kfree(kobj); +} + static const struct kobj_type hyp_sysfs_kobj_type = { + .release = hyp_sysfs_release, .sysfs_ops = &hyp_sysfs_ops, };
--
2.56.0.385.gd3acb90ef8-goog