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path: root/drivers/tty/serial/xilinx_uartps.c
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Diffstat (limited to 'drivers/tty/serial/xilinx_uartps.c')
-rw-r--r--drivers/tty/serial/xilinx_uartps.c14
1 files changed, 3 insertions, 11 deletions
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 9ab910370c56..82a3151e393c 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -147,15 +147,11 @@
static irqreturn_t xuartps_isr(int irq, void *dev_id)
{
struct uart_port *port = (struct uart_port *)dev_id;
- struct tty_struct *tty;
unsigned long flags;
unsigned int isrstatus, numbytes;
unsigned int data;
char status = TTY_NORMAL;
- /* Get the tty which could be NULL so don't assume it's valid */
- tty = tty_port_tty_get(&port->state->port);
-
spin_lock_irqsave(&port->lock, flags);
/* Read the interrupt status register to determine which
@@ -187,14 +183,11 @@ static irqreturn_t xuartps_isr(int irq, void *dev_id)
} else if (isrstatus & XUARTPS_IXR_OVERRUN)
port->icount.overrun++;
- if (tty)
- uart_insert_char(port, isrstatus,
- XUARTPS_IXR_OVERRUN, data,
- status);
+ uart_insert_char(port, isrstatus, XUARTPS_IXR_OVERRUN,
+ data, status);
}
spin_unlock(&port->lock);
- if (tty)
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(&port->state->port);
spin_lock(&port->lock);
}
@@ -237,7 +230,6 @@ static irqreturn_t xuartps_isr(int irq, void *dev_id)
/* be sure to release the lock and tty before leaving */
spin_unlock_irqrestore(&port->lock, flags);
- tty_kref_put(tty);
return IRQ_HANDLED;
}