ppc64: disable_irq fix from x86

ef933cd3 · Anton Blanchard · 7bd4054f · ef933cd3
Commit ef933cd3 authored Oct 11, 2003 by Anton Blanchard
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arch/ppc64/kernel/irq.c arch/ppc64/kernel/irq.c +3 -1

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--- a/arch/ppc64/kernel/irq.c
+++ b/arch/ppc64/kernel/irq.c
@@ -268,7 +268,9 @@ void free_irq(unsigned int irq, void *dev_id)
 
 void disable_irq(unsigned int irq)
 {
+	irq_desc_t *desc = irq_desc + irq;
 	disable_irq_nosync(irq);
+	if (desc->action)
 		synchronize_irq(irq);
 }