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genirq: Add missing __must_hold() sparse annotation 

Add __must_hold() annotation to address the following sparse warning:

  warning: context imbalance in irq_wait_for_poll - unexpected unlock

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20191216144208.29852-2-jbi.octave@gmail.com
This commit is contained in:
Jules Irenge 2019-12-16 14:42:08 +00:00 committed by Thomas Gleixner
parent 8b3b54799b
commit 099368bb10
1 changed files with 1 additions and 0 deletions
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kernel/irq/spurious.c
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@ -34,6 +34,7 @@ static atomic_t irq_poll_active;
* true and let the handler run. * true and let the handler run.
*/ */
bool irq_wait_for_poll(struct irq_desc *desc) bool irq_wait_for_poll(struct irq_desc *desc)
__must_hold(&desc->lock)
{ {
if (WARN_ONCE(irq_poll_cpu == smp_processor_id(), if (WARN_ONCE(irq_poll_cpu == smp_processor_id(),
"irq poll in progress on cpu %d for irq %d\n", "irq poll in progress on cpu %d for irq %d\n",