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authorThomas Gleixner <tglx@linutronix.de>2011-02-02 22:58:19 (GMT)
committerThomas Gleixner <tglx@linutronix.de>2011-02-19 11:58:08 (GMT)
commitb738a50a202639614c98b5763b01bf9201779e50 (patch)
treefa1f0314db4d1a7d6a482d5845da2ffa1d99dd73 /kernel/irq/handle.c
parent1082687e8d6292a61759eb83358e7db39fed1bf4 (diff)
downloadlinux-b738a50a202639614c98b5763b01bf9201779e50.tar.xz
genirq: Warn when handler enables interrupts
We run all handlers with interrupts disabled and expect them not to enable them. Warn when we catch one who does. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/handle.c')
-rw-r--r--kernel/irq/handle.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 3540a71..cdd6fbb 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -68,6 +68,9 @@ irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
ret = action->handler(irq, action->dev_id);
trace_irq_handler_exit(irq, action, ret);
+ if (WARN_ON_ONCE(!irqs_disabled()))
+ local_irq_disable();
+
switch (ret) {
case IRQ_WAKE_THREAD:
/*
@@ -114,7 +117,6 @@ irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
if (status & IRQF_SAMPLE_RANDOM)
add_interrupt_randomness(irq);
- local_irq_disable();
return retval;
}