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 <[email protected]>
----
kernel/irq/manage.c | 1 +
1 files changed, 1 insertion(+)
Index: linux/kernel/irq/manage.c
===================================================================
--- linux.orig/kernel/irq/manage.c
+++ linux/kernel/irq/manage.c
@@ -263,6 +263,7 @@ void free_irq(unsigned int irq, void *de
unsigned long flags;
irqreturn_t (*handler)(int, void *, struct pt_regs *) = NULL;
+ WARN_ON(in_interrupt());
if (irq >= NR_IRQS)
return;
-
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