diff --git a/arch/arm/plat-nomadik/gpio.c b/arch/arm/plat-nomadik/gpio.c
index 9a09b27..a9ee988 100644
--- a/arch/arm/plat-nomadik/gpio.c
+++ b/arch/arm/plat-nomadik/gpio.c
@@ -36,7 +36,7 @@
 	struct gpio_chip chip;
 	void __iomem *addr;
 	unsigned int parent_irq;
-	spinlock_t *lock;
+	spinlock_t lock;
 	/* Keep track of configured edges */
 	u32 edge_rising;
 	u32 edge_falling;
@@ -321,6 +321,7 @@
 	nmk_chip->addr = io_p2v(dev->res.start);
 	nmk_chip->chip = nmk_gpio_template;
 	nmk_chip->parent_irq = pdata->parent_irq;
+	spin_lock_init(&nmk_chip->lock);
 
 	chip = &nmk_chip->chip;
 	chip->base = pdata->first_gpio;