genirq: Reuse existing can set affinty check

Add a !desc check while at it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 84a0a9c22226..550ae97a0040 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -73,8 +73,8 @@ int irq_can_set_affinity(unsigned int irq)
 {
         struct irq_desc *desc = irq_to_desc(irq);
 
-        if (!irqd_can_balance(&desc->irq_data) || !desc->irq_data.chip ||
-            !desc->irq_data.chip->irq_set_affinity)
+        if (!desc || !irqd_can_balance(&desc->irq_data) ||
+            !desc->irq_data.chip || !desc->irq_data.chip->irq_set_affinity)
                 return 0;
 
         return 1;