linux-kernel - [PATCH 2/3] irqchip/gic-v3: Propagate gic_cpu_pm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230214233426.2994501-3-f.fainelli@gmail.com>
Date:   Tue, 14 Feb 2023 15:34:25 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Oliver Upton <oliver.upton@...ux.dev>,
        linux-kernel@...r.kernel.org (open list:IRQCHIP DRIVERS),
        Sudeep Holla <sudeep.holla@....com>,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@...adcom.com>
Subject: [PATCH 2/3] irqchip/gic-v3: Propagate gic_cpu_pm_init() return code

In preparation for allocating memory which may fail, propagate the
return code from gic_cpu_pm_init().

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/irqchip/irq-gic-v3.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index b60fadb7eb44..48b0e9aba27c 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -1395,9 +1395,11 @@ static struct notifier_block gic_cpu_pm_notifier_block = {
 	.notifier_call = gic_cpu_pm_notifier,
 };
 
-static void gic_cpu_pm_init(void)
+static int gic_cpu_pm_init(void)
 {
 	cpu_pm_register_notifier(&gic_cpu_pm_notifier_block);
+
+	return 0;
 }
 
 #else
@@ -1891,7 +1893,9 @@ static int __init gic_init_bases(void __iomem *dist_base,
 	gic_dist_init();
 	gic_cpu_init();
 	gic_smp_init();
-	gic_cpu_pm_init();
+	err = gic_cpu_pm_init();
+	if (err)
+		goto out_set_handle;
 
 	if (gic_dist_supports_lpis()) {
 		its_init(handle, &gic_data.rdists, gic_data.domain);
@@ -1906,6 +1910,8 @@ static int __init gic_init_bases(void __iomem *dist_base,
 
 	return 0;
 
+out_set_handle:
+	set_handle_irq(NULL);
 out_free:
 	if (gic_data.domain)
 		irq_domain_remove(gic_data.domain);
-- 
2.34.1