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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-20 09:56:08 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-20 09:56:08 +0100 |
| commit | a8f25c36f7322fd089e6d006b4e3708038882561 (patch) | |
| tree | e8550a9f5c085ac9dc6b5f183ea9e50ecbfd2ae5 /drivers/tty/serial/sh-sci.c | |
| parent | 225b3dc92da1a3198cf687b13435fef952757a8f (diff) | |
| parent | c698ca5278934c0ae32297a8725ced2e27585d7f (diff) | |
Merge branch 4.16-rc6 into usb-next
We want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/sh-sci.c')
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 7257c078e155..44adf9db38f8 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -885,6 +885,8 @@ static void sci_receive_chars(struct uart_port *port) /* Tell the rest of the system the news. New characters! */ tty_flip_buffer_push(tport); } else { + /* TTY buffers full; read from RX reg to prevent lockup */ + serial_port_in(port, SCxRDR); serial_port_in(port, SCxSR); /* dummy read */ sci_clear_SCxSR(port, SCxSR_RDxF_CLEAR(port)); } |