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[PATCH 03/11] sh: sq: Add missing kobject release callback to ktype_percpu_entry
- To: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, "Rafael J . Wysocki" <rafael@xxxxxxxxxx>, Danilo Krummrich <dakr@xxxxxxxxxx>, Miguel Ojeda <ojeda@xxxxxxxxxx>, Kees Cook <kees@xxxxxxxxxx>, Nathan Chancellor <nathan@xxxxxxxxxx>
- From: Ian Rogers <irogers@xxxxxxxxxx>
- Date: Tue, 13 Oct 2026 15:39:38 -0700
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- Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>, Bill Wendling <morbo@xxxxxxxxxx>, Justin Stitt <justinstitt@xxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Madhavan Srinivasan <maddy@xxxxxxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Nicholas Piggin <npiggin@xxxxxxxxx>, Christophe Leroy <chleroy@xxxxxxxxxx>, Nayna Jain <nayna@xxxxxxxxxxxxx>, Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>, Rich Felker <dalias@xxxxxxxx>, John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>, Viresh Kumar <viresh.kumar@xxxxxxxxxx>, David Teigland <teigland@xxxxxxxxxx>, Alexander Aring <aahringo@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>, Heiko Carstens <hca@xxxxxxxxxxxxx>, Vasily Gorbik <gor@xxxxxxxxxxxxx>, Alexander Gordeev <agordeev@xxxxxxxxxxxxx>, Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>, Sven Schnelle <svens@xxxxxxxxxxxxx>, Richard Weinberger <richard@xxxxxx>, Zhihao Cheng <chengzhihao1@xxxxxxxxxx>, Felix Kuehling <Felix.Kuehling@xxxxxxx>, Alex Deucher <alexander.deucher@xxxxxxx>, "Christian König" <christian.koenig@xxxxxxx>, driver-core@xxxxxxxxxxxxxxx, llvm@xxxxxxxxxxxxxxx, linux-hardening@xxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, linux-pm@xxxxxxxxxxxxxxx, linux-acpi@xxxxxxxxxxxxxxx, gfs2@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-mtd@xxxxxxxxxxxxxxxxxxx, amd-gfx@xxxxxxxxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Ian Rogers <irogers@xxxxxxxxxx>
- Delivery-date: Tue, 13 Oct 2026 22:40:29 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
In sq_dev_add(), sq_kobject[cpu] is dynamically allocated with
kzalloc_obj() and initialized with ktype_percpu_entry. When
sq_dev_remove() calls kobject_put(kobj), the kobject is never freed
because ktype_percpu_entry lacks a .release callback.
Provide a sq_kobj_release() callback that calls kfree(kobj).
Fixes: d7c30c682a27 ("sh: Store Queue API rework.")
Assisted-by: Antigravity:gemini-3.1-pro
Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
arch/sh/kernel/cpu/sh4/sq.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c
index 908a8e09113b..f33864958487 100644
--- a/arch/sh/kernel/cpu/sh4/sq.c
+++ b/arch/sh/kernel/cpu/sh4/sq.c
@@ -331,7 +331,13 @@ static const struct sysfs_ops sq_sysfs_ops = {
.store = sq_sysfs_store,
};
+static void sq_kobj_release(struct kobject *kobj)
+{
+ kfree(kobj);
+}
+
static struct kobj_type ktype_percpu_entry = {
+ .release = sq_kobj_release,
.sysfs_ops = &sq_sysfs_ops,
.default_groups = sq_sysfs_groups,
};
--
2.56.0.385.gd3acb90ef8-goog
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