Commit cd7b24bb authored Mar 26, 2006 by Ingo Molnar Committed by Linus Torvalds Mar 26, 2006

[PATCH] warn if free_irq() is called from IRQ context



Warn if free_irq() is called in IRQ context - free_irq() can execute /proc
VFS work, which must not be done in IRQ context.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 6dc659d8

kernel/irq/manage.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -271,6 +271,7 @@ void free_irq(unsigned int irq, void *dev_id)
		struct irqaction **p;
		unsigned long flags;

		WARN_ON(in_interrupt());
		if (irq >= NR_IRQS)
		return;