genirq/manage: Use the correct lock guard in irq_set_irq_wake()

Commit 8589e325ba4f ("genirq/manage: Rework irq_set_irq_wake()") updated
the irq_set_irq_wake() to use the new guards for locking the interrupt
descriptor.

However, in doing so it inadvertently changed irq_set_irq_wake() such that
the 'chip_bus_lock' is no longer acquired. This has caused system suspend
tests to fail on some Tegra platforms.

Fix this by correcting the guard used in irq_set_irq_wake() to ensure the
'chip_bus_lock' is held.

Fixes: 8589e325ba4f ("genirq/manage: Rework irq_set_irq_wake()")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250514095041.1109783-1-jonathanh@nvidia.com

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 2861e11acf3a0005f36885a9732265fb6a05af12..c94837382037e4ce47d0f5af0fcd98258626787c 100644 (file)
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -846,7 +846,7 @@ static int set_irq_wake_real(unsigned int irq, unsigned int on)
  */
 int irq_set_irq_wake(unsigned int irq, unsigned int on)
 {
-       scoped_irqdesc_get_and_lock(irq, IRQ_GET_DESC_CHECK_GLOBAL) {
+       scoped_irqdesc_get_and_buslock(irq, IRQ_GET_DESC_CHECK_GLOBAL) {
                struct irq_desc *desc = scoped_irqdesc;
                int ret = 0;