In the error cases the clock cut is missed. This patch intends to fix the
same.

Cc: [email protected]
Cc: Govindraj.R <[email protected]>
Signed-off-by: Shubhrajyoti D <[email protected]>
---
 drivers/tty/serial/omap-serial.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index fe099bb..10e80bb 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -319,6 +319,8 @@ static void serial_omap_start_tx(struct uart_port *port)
 
                if (ret < 0) {
                        serial_omap_enable_ier_thri(up);
+                       pm_runtime_mark_last_busy(&up->pdev->dev);
+                       pm_runtime_put_autosuspend(&up->pdev->dev);
                        return;
                }
        }
@@ -1029,8 +1031,10 @@ static int serial_omap_poll_get_char(struct uart_port 
*port)
 
        pm_runtime_get_sync(&up->pdev->dev);
        status = serial_in(up, UART_LSR);
-       if (!(status & UART_LSR_DR))
+       if (!(status & UART_LSR_DR)) {
+               pm_runtime_put(&up->pdev->dev);
                return NO_POLL_CHAR;
+       }
 
        status = serial_in(up, UART_RX);
        pm_runtime_put(&up->pdev->dev);
-- 
1.7.4.1

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