diff options
Diffstat (limited to 'drivers/gpio/timbgpio.c')
| -rw-r--r-- | drivers/gpio/timbgpio.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpio/timbgpio.c b/drivers/gpio/timbgpio.c index ac4d0f0ea02b..ddd053108a13 100644 --- a/drivers/gpio/timbgpio.c +++ b/drivers/gpio/timbgpio.c @@ -131,6 +131,7 @@ static int timbgpio_irq_type(unsigned irq, unsigned trigger) unsigned long flags; u32 lvr, flr, bflr = 0; u32 ver; + int ret = 0; if (offset < 0 || offset > tgpio->gpio.ngpio) return -EINVAL; @@ -154,8 +155,10 @@ static int timbgpio_irq_type(unsigned irq, unsigned trigger) } if ((trigger & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH) { - if (ver < 3) - return -EINVAL; + if (ver < 3) { + ret = -EINVAL; + goto out; + } else { flr |= 1 << offset; bflr |= 1 << offset; @@ -175,9 +178,10 @@ static int timbgpio_irq_type(unsigned irq, unsigned trigger) iowrite32(bflr, tgpio->membase + TGPIO_BFLR); iowrite32(1 << offset, tgpio->membase + TGPIO_ICR); - spin_unlock_irqrestore(&tgpio->lock, flags); - return 0; +out: + spin_unlock_irqrestore(&tgpio->lock, flags); + return ret; } static void timbgpio_irq(unsigned int irq, struct irq_desc *desc) |