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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-21 10:07:25 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-21 10:07:25 -0700 |
| commit | 90125edbc49ec58b9101c4271bb1d87b04a4620f (patch) | |
| tree | 068353d4234435b17ade687b50a5d5015bdf1ad9 /drivers/tty/serial/ip22zilog.c | |
| parent | test: add firmware_class loader test (diff) | |
| parent | Linux 3.16-rc6 (diff) | |
| download | linux-dev-90125edbc49ec58b9101c4271bb1d87b04a4620f.tar.xz linux-dev-90125edbc49ec58b9101c4271bb1d87b04a4620f.zip | |
Merge 3.16-rc6 into driver-core-next
We want the platform changes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/ip22zilog.c')
| -rw-r--r-- | drivers/tty/serial/ip22zilog.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/serial/ip22zilog.c b/drivers/tty/serial/ip22zilog.c index 1efd4c36ba0c..99b7b8697861 100644 --- a/drivers/tty/serial/ip22zilog.c +++ b/drivers/tty/serial/ip22zilog.c @@ -603,6 +603,8 @@ static void ip22zilog_start_tx(struct uart_port *port) } else { struct circ_buf *xmit = &port->state->xmit; + if (uart_circ_empty(xmit)) + return; writeb(xmit->buf[xmit->tail], &channel->data); ZSDELAY(); ZS_WSYNC(channel); |