1 files changed, 1 insertions, 0 deletions

diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 696b8e4e66bb..a40d54fc1fdd 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -2444,6 +2444,7 @@ void destroy_irq(unsigned int irq)
         dynamic_irq_cleanup(irq);
 
         spin_lock_irqsave(&vector_lock, flags);
+        clear_bit(irq_vector[irq], used_vectors);
         irq_vector[irq] = 0;
         spin_unlock_irqrestore(&vector_lock, flags);
 }