efi: Add missing static initializer for efi_mm::cpus_allowed_lock

commit 40374d3 upstream.

Initialize the cpus_allowed_lock struct member of efi_mm.

Cc: stable@vger.kernel.org
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: ardbiesheuvel

drivers/firmware/efi/efi.c

@@ -74,6 +74,9 @@ struct mm_struct efi_mm = {
 	.page_table_lock	= __SPIN_LOCK_UNLOCKED(efi_mm.page_table_lock),
 	.mmlist			= LIST_HEAD_INIT(efi_mm.mmlist),
 	.cpu_bitmap		= { [BITS_TO_LONGS(NR_CPUS)] = 0},
+#ifdef CONFIG_SCHED_MM_CID
+	.cpus_allowed_lock	= __RAW_SPIN_LOCK_UNLOCKED(efi_mm.cpus_allowed_lock),
+#endif
 };
 
 struct workqueue_struct *efi_rts_wq;