genirq: Add missing buslock to set_irq_type(), set_irq_wake()
chips behind a slow bus cannot update the chip under desc->lock, but
we miss the chip_buslock/chip_bus_sync_unlock() calls around the set
type and set wake functions.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index ba84307..a400db2 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -454,6 +454,7 @@
/* wakeup-capable irqs can be shared between drivers that
* don't need to have the same sleep mode behaviors.
*/
+ chip_bus_lock(desc);
raw_spin_lock_irqsave(&desc->lock, flags);
if (on) {
if (desc->wake_depth++ == 0) {
@@ -476,6 +477,7 @@
}
raw_spin_unlock_irqrestore(&desc->lock, flags);
+ chip_bus_sync_unlock(desc);
return ret;
}
EXPORT_SYMBOL(set_irq_wake);
