[PATCH v6 13/14] driver core: Add device_hotplug_lock_assert_held() helper

[sashiko-bot at kernel.org]

> crash_get_memory_ranges() walks memblock, which memory hotplug
> modifies under device_hotplug_lock.  A caller that does not hold
> the lock can race with memblock_double_array() and iterate a freed
> regions array.
> 
> Add device_hotplug_lock_assert_held() so that crash code can
> use it to catch such unsafe callers via lockdep.
> 
> Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> Cc: "Rafael J. Wysocki" <rafael at kernel.org>
> Cc: Danilo Krummrich <dakr at kernel.org>
> Signed-off-by: Jinjie Ruan <ruanjinjie at huawei.com>

Sashiko has reviewed this patch and found no issues. It looks great!

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Sashiko AI review · https://sashiko.dev/#/patchset/20260921090450.807575-1-ruanjinjie@huawei.com?part=13