diff options
| -rw-r--r-- | drivers/ipack/devices/ipoctal.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c index 141094e7c06e..69687f156999 100644 --- a/drivers/ipack/devices/ipoctal.c +++ b/drivers/ipack/devices/ipoctal.c @@ -177,19 +177,20 @@ static void ipoctal_irq_tx(struct ipoctal_channel *channel) if (channel->nb_bytes == 0) return; + spin_lock(&channel->lock); value = channel->tty_port.xmit_buf[*pointer_write]; iowrite8(value, &channel->regs->w.thr); channel->stats.tx++; (*pointer_write)++; *pointer_write = *pointer_write % PAGE_SIZE; channel->nb_bytes--; + spin_unlock(&channel->lock); } static void ipoctal_irq_channel(struct ipoctal_channel *channel) { u8 isr, sr; - spin_lock(&channel->lock); /* The HW is organized in pair of channels. See which register we need * to read from */ isr = ioread8(&channel->block_regs->r.isr); @@ -213,8 +214,6 @@ static void ipoctal_irq_channel(struct ipoctal_channel *channel) /* TX of each character */ if ((isr & channel->isr_tx_rdy_mask) && (sr & SR_TX_READY)) ipoctal_irq_tx(channel); - - spin_unlock(&channel->lock); } static irqreturn_t ipoctal_irq_handler(void *arg) |