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

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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>
This commit is contained in:
Ingo Molnar
2006-03-26 01:36:54 -08:00
committed by Linus Torvalds
parent 6dc659d813
commit cd7b24bb18
1 changed files with 1 additions and 0 deletions
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kernel/irq/manage.c
+1
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@@ -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;