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-rw-r--r--drivers/ipack/devices/ipoctal.c5
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)