diff --git a/drivers/cam_isp/isp_hw_mgr/hw_utils/irq_controller/cam_irq_controller.c b/drivers/cam_isp/isp_hw_mgr/hw_utils/irq_controller/cam_irq_controller.c
index 1e138bac5f92..83d4a61a2682 100644
--- a/drivers/cam_isp/isp_hw_mgr/hw_utils/irq_controller/cam_irq_controller.c
+++ b/drivers/cam_isp/isp_hw_mgr/hw_utils/irq_controller/cam_irq_controller.c
@@ -515,8 +515,8 @@ int cam_irq_controller_unsubscribe_irq(void *irq_controller,
 		}
 	}
 
-	priority = evt_handler->priority;
 	if (found) {
+		priority = evt_handler->priority;
 		for (i = 0; i < controller->num_registers; i++) {
 			irq_register = &controller->irq_register_arr[i];
 			irq_register->top_half_enable_mask[priority] &=