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Convert the explicit mutex_lock/mutex_unlock pair in mem_write() into a cleanup.h guard(mutex)() scope-based lock acquisition. This removes the remaining goto-based cleanup path and keeps the lock held until the end of the mem_write() scope. Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: ZhaoJinming <zhaojinming@uniontech.com> Link: https://patch.msgid.link/20260521130848.2860219-2-zhaojinming@uniontech.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>