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ACPI: OSL: Add missing __acquires/__releases annotations

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Sparse reports a warnings at acpi_os_acquire_lock() and
acpi_os_release_lock():

warning: context imbalance in acpi_os_acquire_lock() - unexpected unlock

warning: context imbalance in acpi_os_release_lock() - unexpected unlock

which result from missing __acquires/__releases annotations.

Add the annotations as appropriate to get rid of the warnings.

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
[ rjw: Two patches merged into one, subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Jules Irenge 2020-02-23 23:17:03 +00:00 committed by Rafael J. Wysocki
parent 98d54f81e3
commit 2288eba5ca
1 changed files with 2 additions and 0 deletions
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2
drivers/acpi/osl.c
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@ -1598,6 +1598,7 @@ void acpi_os_delete_lock(acpi_spinlock handle)
*/
acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock lockp)
__acquires(lockp)
{
acpi_cpu_flags flags;
spin_lock_irqsave(lockp, flags);
@ -1609,6 +1610,7 @@ acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock lockp)
*/
void acpi_os_release_lock(acpi_spinlock lockp, acpi_cpu_flags flags)
__releases(lockp)
{
spin_unlock_irqrestore(lockp, flags);
}