diff options
| -rw-r--r-- | drivers/uio/uio_dmem_genirq.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c index 792c3e9c9ce5..5313307c2754 100644 --- a/drivers/uio/uio_dmem_genirq.c +++ b/drivers/uio/uio_dmem_genirq.c @@ -41,6 +41,11 @@ struct uio_dmem_genirq_platdata { unsigned int refcnt; }; +/* Bits in uio_dmem_genirq_platdata.flags */ +enum { + UIO_IRQ_DISABLED = 0, +}; + static int uio_dmem_genirq_open(struct uio_info *info, struct inode *inode) { struct uio_dmem_genirq_platdata *priv = info->priv; @@ -111,7 +116,7 @@ static irqreturn_t uio_dmem_genirq_handler(int irq, struct uio_info *dev_info) */ spin_lock(&priv->lock); - if (!test_and_set_bit(0, &priv->flags)) + if (!__test_and_set_bit(UIO_IRQ_DISABLED, &priv->flags)) disable_irq_nosync(irq); spin_unlock(&priv->lock); @@ -133,10 +138,10 @@ static int uio_dmem_genirq_irqcontrol(struct uio_info *dev_info, s32 irq_on) spin_lock_irqsave(&priv->lock, flags); if (irq_on) { - if (test_and_clear_bit(0, &priv->flags)) + if (__test_and_clear_bit(UIO_IRQ_DISABLED, &priv->flags)) enable_irq(dev_info->irq); } else { - if (!test_and_set_bit(0, &priv->flags)) + if (!__test_and_set_bit(UIO_IRQ_DISABLED, &priv->flags)) disable_irq_nosync(dev_info->irq); } spin_unlock_irqrestore(&priv->lock, flags); |