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| author | Wolfram Sang <wsa@the-dreams.de> | 2018-03-24 13:39:18 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2018-03-24 13:39:18 +0100 |
| commit | 0b884c22c5b7f6ef985b3d39fed06ad1f8296042 (patch) | |
| tree | 74504e80ad62cb0acabdfa796348d001d5d1a2a4 /drivers/tty/serial/sh-sci.c | |
| parent | eb49778c8c6cbe075cf90d741ccf16f674a8db4e (diff) | |
| parent | 84e10623c0b9c81557918804f309d66aec86a233 (diff) | |
| download | linux-0b884c22c5b7f6ef985b3d39fed06ad1f8296042.tar.gz linux-0b884c22c5b7f6ef985b3d39fed06ad1f8296042.tar.xz | |
Merge tag 'at24-4.17-updates-for-wolfram' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-4.17
"three new special cases for device tree compatible strings"
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)); } |