Subject: [PATCH 4.13 36/36] irqchip/irq-mvebu-gicp: Add missing spin_lock init

From: [email-masked] (Greg Kroah-Hartman)
Date: Mon, 6 Nov 2017 10:12:49 +0100

4.13-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Antoine Tenart <[email-masked]>

commit c9bb86338a6bb91e4d32db04feb6b8d423e04d06 upstream.

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 <[email-masked]>
Signed-off-by: Thomas Gleixner <[email-masked]>
Reviewed-by: gregory.clement at free-electrons.com
Acked-by: marc.zyngier at arm.com
Cc: thomas.petazzoni at free-electrons.com
Cc: andrew at lunn.ch
Cc: jason at lakedaemon.net
Cc: nadavh at marvell.com
Cc: miquel.raynal at free-electrons.com
Cc: linux-arm-kernel at lists.infradead.org
Cc: sebastian.hesselbarth at gmail.com
Link: https://lkml.kernel.org/r/20171025072326.21030-1-antoine.tenart at free-electrons.com
Signed-off-by: Greg Kroah-Hartman <[email-masked]>

---
 drivers/irqchip/irq-mvebu-gicp.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/irqchip/irq-mvebu-gicp.c
+++ b/drivers/irqchip/irq-mvebu-gicp.c
@@ -194,6 +194,7 @@ static int mvebu_gicp_probe(struct platf
 		return -ENOMEM;
 
 	gicp->dev = &pdev->dev;
+	spin_lock_init(&gicp->spi_lock);
 
 	gicp->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!gicp->res)