Merge tag 'v3.12-rc6' into devel

Linux 3.12-rc6

Conflicts:
	drivers/gpio/gpio-lynxpoint.c

2 files changed, 7 insertions, 4 deletions

diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c
index 21603e6..a080474 100644
--- a/drivers/gpio/gpio-lynxpoint.c
+++ b/drivers/gpio/gpio-lynxpoint.c
@@ -248,13 +248,14 @@ static void lp_gpio_irq_handler(unsigned hwirq, struct irq_desc *desc)
 	struct lp_gpio *lg = irq_data_get_irq_handler_data(data);
 	struct irq_chip *chip = irq_data_get_irq_chip(data);
 	u32 base, pin, mask;
-	unsigned long reg, pending;
+	unsigned long reg, ena, pending;
 
 	/* check from GPIO controller which pin triggered the interrupt */
 	for (base = 0; base < lg->chip.ngpio; base += 32) {
 		reg = lp_gpio_reg(&lg->chip, base, LP_INT_STAT);
+		ena = lp_gpio_reg(&lg->chip, base, LP_INT_ENABLE);
 
-		while ((pending = inl(reg))) {
+		while ((pending = (inl(reg) & inl(ena)))) {
 			unsigned irq;
 
 			pin = __ffs(pending);
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 1014cb5..d66139d 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -183,7 +183,7 @@ static struct gpio_desc *gpiochip_offset_to_desc(struct gpio_chip *chip,
  */
 static int desc_to_gpio(const struct gpio_desc *desc)
 {
-	return desc->chip->base + gpio_chip_hwgpio(desc);
+	return desc - &gpio_desc[0];
 }
 
 
@@ -1452,7 +1452,7 @@ static int gpiod_request(struct gpio_desc *desc, const char *label)
 	int			status = -EPROBE_DEFER;
 	unsigned long		flags;
 
-	if (!desc || !desc->chip) {
+	if (!desc) {
 		pr_warn("%s: invalid GPIO\n", __func__);
 		return -EINVAL;
 	}
@@ -1460,6 +1460,8 @@ static int gpiod_request(struct gpio_desc *desc, const char *label)
 	spin_lock_irqsave(&gpio_lock, flags);
 
 	chip = desc->chip;
+	if (chip == NULL)
+		goto done;
 
 	if (!try_module_get(chip->owner))
 		goto done;