linux-kernel - [PATCH] irqchip/irq-mvebu-gicp: add missing spin

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Date:   Wed, 25 Oct 2017 09:23:26 +0200
From:   Antoine Tenart <antoine.tenart@...e-electrons.com>
To:     tglx@...utronix.de, marc.zyngier@....com, jason@...edaemon.net,
        gregory.clement@...e-electrons.com, andrew@...n.ch,
        sebastian.hesselbarth@...il.com,
        thomas.petazzoni@...e-electrons.com
Cc:     Antoine Tenart <antoine.tenart@...e-electrons.com>,
        miquel.raynal@...e-electrons.com, nadavh@...vell.com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] irqchip/irq-mvebu-gicp: add missing spin_lock init

A spin lock is used in the irq-mvebu-gicp driver, but it is never
initialized. This patch adds the missing spin_lock_init() call in the
driver's probe function.

Fixes: a68a63cb4dfc ("irqchip/irq-mvebu-gicp: Add new driver for Marvell GICP")
Signed-off-by: Antoine Tenart <antoine.tenart@...e-electrons.com>
---
 drivers/irqchip/irq-mvebu-gicp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/irqchip/irq-mvebu-gicp.c b/drivers/irqchip/irq-mvebu-gicp.c
index b283fc90be1e..17a4a7b6cdbb 100644
--- a/drivers/irqchip/irq-mvebu-gicp.c
+++ b/drivers/irqchip/irq-mvebu-gicp.c
@@ -194,6 +194,7 @@ static int mvebu_gicp_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	gicp->dev = &pdev->dev;
+	spin_lock_init(&gicp->spi_lock);
 
 	gicp->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!gicp->res)
-- 
2.14.2