diff options
Diffstat (limited to 'drivers/serial/serial_sh.c')
| -rw-r--r-- | drivers/serial/serial_sh.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c index e4cc4ee4260..7ab62e0e90b 100644 --- a/drivers/serial/serial_sh.c +++ b/drivers/serial/serial_sh.c @@ -112,7 +112,16 @@ static int serial_raw_putc(struct uart_port *port, const char c) static int serial_rx_fifo_level(struct uart_port *port) { - return scif_rxfill(port); + int ret; + + ret = scif_rxfill(port); + if (ret) + return ret; + + if (sci_in(port, SCxSR) & SCxSR_RDxF(port)) + return 1; + + return 0; } static int sh_serial_tstc_generic(struct uart_port *port) |