linux-kernel - [PATCH] irqchip/gic-v3: Move irq_domain_update_bus

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Message-Id: <1583983255-44115-1-git-send-email-zhangliguang@linux.alibaba.com>
Date:   Thu, 12 Mar 2020 11:20:55 +0800
From:   luanshi <zhangliguang@...ux.alibaba.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        luanshi <zhangliguang@...ux.alibaba.com>
Subject: [PATCH] irqchip/gic-v3: Move irq_domain_update_bus_token to after checking for NULL domain

irq_domain_update_bus_token should be called after checking for NULL
domain.

Signed-off-by: Liguang Zhang <zhangliguang@...ux.alibaba.com>
---
 drivers/irqchip/irq-gic-v3.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index c1f7af9..8e5dd96 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -1581,7 +1581,6 @@ static int __init gic_init_bases(void __iomem *dist_base,
 
 	gic_data.domain = irq_domain_create_tree(handle, &gic_irq_domain_ops,
 						 &gic_data);
-	irq_domain_update_bus_token(gic_data.domain, DOMAIN_BUS_WIRED);
 	gic_data.rdists.rdist = alloc_percpu(typeof(*gic_data.rdists.rdist));
 	gic_data.rdists.has_rvpeid = true;
 	gic_data.rdists.has_vlpis = true;
@@ -1592,6 +1591,8 @@ static int __init gic_init_bases(void __iomem *dist_base,
 		goto out_free;
 	}
 
+	irq_domain_update_bus_token(gic_data.domain, DOMAIN_BUS_WIRED);
+
 	gic_data.has_rss = !!(typer & GICD_TYPER_RSS);
 	pr_info("Distributor has %sRange Selector support\n",
 		gic_data.has_rss ? "" : "no ");
-- 
1.8.3.1