ACPI: osl, add acpi_os_create_lock interface (9f63b88b) · Commits · e / devices / android_kernel_sony_msm8994_rework

drivers/acpi/osl.c

+25 −8

Original line number	Diff line number	Diff line
		@@ -883,14 +883,6 @@ void acpi_os_wait_events_complete(void *context)

		EXPORT_SYMBOL(acpi_os_wait_events_complete);

		/*
		* Deallocate the memory for a spinlock.
		*/
		void acpi_os_delete_lock(acpi_spinlock handle)
		{
		return;
		}

		acpi_status
		acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle)
		{
		@@ -1321,6 +1313,31 @@ int acpi_resources_are_enforced(void)
		}
		EXPORT_SYMBOL(acpi_resources_are_enforced);

		/*
		* Create and initialize a spinlock.
		*/
		acpi_status
		acpi_os_create_lock(acpi_spinlock *out_handle)
		{
		spinlock_t *lock;

		lock = ACPI_ALLOCATE(sizeof(spinlock_t));
		if (!lock)
		return AE_NO_MEMORY;
		spin_lock_init(lock);
		*out_handle = lock;

		return AE_OK;
		}

		/*
		* Deallocate the memory for a spinlock.
		*/
		void acpi_os_delete_lock(acpi_spinlock handle)
		{
		ACPI_FREE(handle);
		}

		/*
		* Acquire a spinlock.
		*

+3 −0

Original line number	Diff line number	Diff line
		@@ -98,6 +98,9 @@ acpi_os_table_override(struct acpi_table_header *existing_table,
		/*
		* Spinlock primitives
		*/
		acpi_status
		acpi_os_create_lock(acpi_spinlock *out_handle);

		void acpi_os_delete_lock(acpi_spinlock handle);

		acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);